2024/09/30 更新

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写真a

 
エルジャマル オサマ
ELJAMAL OSAMA
所属
総合理工学研究院 IFC部門 准教授
総合理工学府 総合理工学専攻(併任)
職名
准教授
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私の研究対象は、持続可能なエネルギー生産と水と廃水からの汚染物質除去のための新しい方法を開発するための科学と工学の原理と技術、ならびに水、廃水、地下水における汚染物質の根本的なメカニズムを研究するための数学モデルです。 新しい方法の開発により、持続可能な社会、生態系、経済を維持するために重要である、安全で持続可能なエネルギーと水資源を達成することができます。 このために、私はいくつかの実験を行い、この研究領域で数学モデルを開発しました。

研究分野

  • 環境・農学 / 環境材料、リサイクル技術

  • 環境・農学 / 環境負荷、リスク評価管理

  • 環境・農学 / 環境負荷低減技術、保全修復技術

  • 社会基盤(土木・建築・防災) / 土木環境システム

学位

  • Kyushu University, Environmental Engineering, M.S., April 2004-March 2006

  • Kyushu University, Environmental Engineering, Ph.D., April 2006-March 2009

経歴

  • Interdisciplinary Graduate School of Engineering Sciences (IGSES), Kyushu University Department of Earth System Science and Technology Associate Professor

    2014年4月 - 現在

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  • Projects Coordinator, Water resources, Water supply and wastewater treatment, JABALIA municipality October 1999 - September 2003 Project Manager, Infrastructure and road construction, Sdodi Company for Contracting April 1998 - September 1999

  • Visiting Scholar, Chemical Engineering, University of Waterloo, Canada June 2011 - September 2011 Postdoctoral Fellow, Earth Resources Engineering, Kyushu University, Japan April 2009 - October 2010

研究テーマ・研究キーワード

  • 研究テーマ:Nanotechnology for water and wastewater treatment

    研究キーワード:Nanotechnology for water and wastewater treatment

    研究期間: 2024年

  • 研究テーマ:Modeling of reactive solute transport in porous media

    研究キーワード:Modeling of reactive solute transport in porous media

    研究期間: 2024年

  • 研究テーマ:Modeling of groundwater flow, remediation and artificial recharge

    研究キーワード:Modeling of groundwater flow, remediation and artificial recharge

    研究期間: 2024年

  • 研究テーマ:Energy generation from solid waste, waste-activated sludge and wastewater

    研究キーワード:Energy generation from solid waste, waste-activated sludge and wastewater

    研究期間: 2024年

  • 研究テーマ:Biological treatment of water and wastewater

    研究キーワード:Biological treatment of water and wastewater

    研究期間: 2024年

  • 研究テーマ:水環境工学研究所 (WEEL) では、私たちの研究チームが環境修復技術、環境保護、再生可能エネルギーの生成に焦点を当てています。 したがって。 私たちは、ナノテクノロジーの利点と利点を利用して、特に水処理と廃棄物からの資源回収のために、環境をきれいにしています。

    研究キーワード:透過性反応バリア (PRB); カラム実験; カラムフィルターシステム; 実験室規模のシステム; 微生物燃料電池 (MFC); 発電; ナノテクノロジー; リソースの回復; 高貴なナノ材料; 特性評価装置; 透過型電子顕微鏡 (TEM); 走査型電子顕微鏡 (SEM); X 線回折装置 (XRD); 合成ナノマテリアル; BET表面積; 粒度分析装置; ヘビーメタル; 砒素; クロム; 放射性元素; セシウムとストロンチウム; 抗生物質; 抗菌剤耐性の遺伝子; 地表水; 地下水; 浅い地下水処理; 深い帯

    研究期間: 2014年4月 - 2022年3月

受賞

  • Best Presentation Award

    2020年12月   the 22nd Cross Straits Symposium on Energy and Environmental science and technology, Fukuoka, Japan  

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    Microbial Fuel Cell MFC (MFCs) is a renewable and sustainable approach. It creates an efficient technology for power production and wastewater treatment. MFC is an electrochemical device which turns wastewater into electricity. The most important parameter of MFC is the microbial content. Using Nanoscale Zero-valent Iron (NZVI) technique was successfully applied in degrading the chemical pollutants and cleaning wastewater. However, the use of NZVI for enhancing the current production is still under investigation. The aim of this study is to confirm the effect of these particles on the bacterial growth and thus on the current generation by using MFCs. For that purpose, the bacterial community was subjected to the NZVI treatment. Then, in order to study the effect of these nanoparticles on the electricity generation, a constructed microbial fuel cell, which utilizes Activated Sludge AS, has been considered for waste water treatment and bioelectricity generation. Experiments were conducted using two AS-MFCs. NZVI particles were added with a concentration of 50mg/L to the FeAS-MFC whereas AS-MFC serves as the control system. After 13 days of operation, the bacterial growth was enhanced by 53.84% and the maximum output voltage increased by 53.05% by using nanoscale zerovalent iron particles. The results indicate how NZVI can promote electricity generation using activated sludge microbial fuel cells.

  • Best Presentation Award

    2020年11月   The 5th Asia Conference on Environment and Sustainable Development (ACESD 2020), with the collaboration of the 4th International Conference on Power and Energy Engineering (ICPEE 2020), Xiamen University of Technology, Xiamen, China  

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    Ciprofloxacin is a fluoroquinolone antibiotic developed to fightback several bacterial diseases. The widespread application in human and animal medicine and the low biodegradation resulted in the persistent detection of ciprofloxacin in many water systems. The occurrence of ciprofloxacin threats human and aquatic life by motivating the development of antimicrobial resistant geneses in water. Microscale (ZVI) and nanoscale zerovalent iron (nZVI) were used to efficiently remove ciprofloxacin from aqueous solutions. The aim of this mini review to summarize:(1) the possible routes for ciprofloxacin to enter the environment,(2) the mechanism of oxidizing organic pollutants by nanoscale zerovalent iron (nZVI),(3) the ways to improve the performance of nZVI and overcome its limitations and finally (4) the available treatment systems in the literature which is developed based on NZVI to remove ciprofloxacin from aqueous environments.

  • Best Presentation Award

    2020年10月   The 6th International Exchange and Innovation Conference on Engineering Sciences (IEICES), Kyushu University, Japan  

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    Hexavalent chromium is one of the highly toxic heavy metals which could lead to severe health issues when it is discharged into aquifers as industrial wastewater. In the current study nFe0/Cu was successfully employed in PRB technology for Cr(VI) removal from groundwater. Batch and column experiments confirmed the high reactive performance of nFe0/Cu towards Cr(VI) removal by around 85% removal efficiency. The main pathways for Cr-species removal by nFe0/Cu were determined as the reduction of Cr(VI) to Cr(III) by both nFe0 and Cu0 and the precipitation/co-precipitation of Cr(III) with the released iron oxides on the nFe0/Cu surface. The developed 3D-surface response optimization model confirmed the reciprocal relation between the residence time, barrier thickness and hydraulic conductivity. The interaction and sensitivity analysis between the model’s parameters were significantly crucial for defining the optimal design conditions of the nFe0/Cu-PRB. Generally, the current study could represent a great contribution in scaling-up the PRB technology towards the real field applications.

  • Best Presentation Award

    2020年1月   International conference on Microbial Electrochemical Systems and Fuel Cell Technologies, New York, USA  

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    The aim of this work was to investigate the effect of Polyvinylpyrrolidone (PVP) on the proprieties and reactivity of nZVIs. The nZVI has been considered as an efficient material for removing the undesired contaminants from water. However, the drawbacks of nZVI such as oxidation and aggregation phenomena largely limit its reactivity. Therefore, PVP was integrated into nZVI to overcome the oxidation and aggregation problems of the particles. Transmission electron microscopy (TEM), X-ray diffraction (XRD) analyses and energy dispersive X-ray spectroscopy (EDS) techniques were performed. Different PVP loads ranged between 0.2 to 2 (g/L) were undertaken, a load of 0.6 (g/L) was the optimum ratio to show the nZVI with good properties without forming aggregates. Comparing with bare-nZVI, the PVP stabilized nZVI showed an excellent performance for nitrate removal. The environmental factors effect such as pH and initial nitrate concentration were investigated. The experimental data and reactions kinetics were explained by investigating four different models. The current work suggests that the PVP strongly proposed as an effective polymer for enhancing the properties and reactivity of nZVI for the practical application.

  • Best Presentation Award

    2019年12月   81st international conference on civil and environmental engineering, Rome, Italy.  

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    The electrical energy generation through Microbial Fuel Cells (MFCs) using microorganisms is a renewable and sustainable approach. It creates truly an efficient technology for power production and wastewater treatment. MFC is an electrochemical device which turns wastewater into electricity. The most important part of MFC is microbes. Nano zero-valent Iron NZVI technique was successfully applied in degrading the chemical pollutants and cleaning wastewater. However, the use of NZVI for enhancing the current production is still not confirmed yet. This study aims to confirm the effect of these particles on the current generation by using MFC. A constructed microbial fuel cell, which utilizes domestic wastewater, has been considered for wastewater treatment and bio-electricity generation. The two electrodes were connected to an external resistor (200 ohms). Experiments were conducted in two steps. First, the MFC was constructed without adding NZVI particles (Control) while at a second step, nanoparticles were added with a concentration of 50mg/L. After 20 hours, the measured voltage increased to 5 and 8mV, respectively. To conclude, the use of zero-valent iron in an MFC system can increase electricity generation.

  • Best Presentation Award

    2017年10月   The 3rd International Exchange and Innovation Conference on Engineering Sciences (IEICES)  

  • Best Presentation Award

    2015年10月   1st International Exchange and Innovation Conference on Engineering & Sciences (IEICES 2015)  

  • Best Presentation Award

    2015年10月   International Conference on Biology, Environment and Chemistry (ICBEC)  

  • Best Paper Award from Japanese Association of Groundwater Hydrology (JAGH)

    2009年2月   Japanese Association of Groundwater Hydrology (JAGH)   Prize for best paper entitle Development of Biological Treatment Model with Biological Clogging Processes in Porous Media Model Application to a Column Study

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    The present study investigates how the sawdust material affects the biological treatment and biological clogging in porous media.
    Serial data from soil-sawdust column experiments were used to develop a model to describe the biological treatment and biological clogging processes in porous media. A model was developed simulating solute transport with biological treatment in soil-sawdust experimental columns including biological clogging processes. The transport part of the model solves the advection dispersion differential equations and the reaction part describes the heterotrophic metabolisms of several groups of bacteria. To simulate the biological clogging effects, the changes in porosity are calculated by converting biomass into volume, which directly reduces the porosity.
    Developed model could be evaluated experiment results. And it is confirmed that sawdust materials could be expected as the materials which could be encouraged biological treatment and improved the hydraulic conductivity.

▼全件表示

論文

  • Encapsulation of iron nanoparticles with magnesium hydroxide shell for remarkable removal of ciprofloxacin from contaminated water 国際誌

    Falyouna, O; Maamoun, I; Bensaida, K; Tahara, A; Sugihara, Y; Eljamal, O

    JOURNAL OF COLLOID AND INTERFACE SCIENCE   605   813 - 827   2022年1月   ISSN:0021-9797 eISSN:1095-7103

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    The rapid evolution of antimicrobial resistant genes (AMRs) in water resources is well correlated to the persistent occurrence of ciprofloxacin in water. For the first time, encapsulated nanoscale zerovalent iron (nZVI) with a shell of magnesium hydroxide (Mg/Fe0) was used to adsorb ciprofloxacin from water. Optimization of the removal conditions exhibited that 5% was the optimum mass ratio between magnesium hydroxide and nZVI [Mg(OH)2/nZVI)] as more than 96% of 100 mg L−1 of ciprofloxacin was removed. In addition, 0.5 g L−1 of Mg/Fe0 showed an extraordinary performance in removing ciprofloxacin over a wide range of pH (3–11) with removal efficiencies exceeded 90%. Kinetic analysis displayed that the kinetic data was well described by both Pseudo first-order and second-order models. Also, the equilibrium data was well fitted by Freundlich isotherm model. In addition, thermodynamic analysis evidenced that the removal of ciprofloxacin by Mg/Fe0 was exothermic, and spontaneous. The experiments also revealed that physisorption and chemisorption were the responsible mechanisms for ciprofloxacin removal. The proposed treatment system remediated 10 litters of 100 mg L−1 of ciprofloxacin solution with 100% overall removal efficiency. This treatment system could be a promising and practical solution to decrease ciprofloxacin concentration in different water bodies.

    DOI: 10.1016/j.jcis.2021.07.154

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  • Optimization modeling of nFe0/Cu-PRB Design for Cr(VI) removal from groundwater

    I. Maamoun, O. Falyouna, R. Eljamal, K. Bensaida, O. Eljamal

    International Journal of Environmental Science and Development   12 ( 3 )   131 - 138   2021年5月

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    記述言語:その他   掲載種別:研究論文(学術雑誌)  

    DOI: 10.18178/IJESD.2021.12.5.1330

  • Stimulating effect of magnesium hydroxide on aqueous characteristics of iron nanocomposites 査読 国際誌

    I. Maamoun, O. Eljamal, O. Falyouna, R. Eljamal, Y. Sugihara

    Water Science and Technology   80 ( 10 )   1996 - 2002   2020年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2166/wst.2020.027

  • Multi-objective optimization of permeable reactive barrier design for Cr(VI) removal from groundwater 査読 国際誌

    Ibrahim Maamoun, Osama Eljamal, Omar Falyouna, Ramadan Eljamal, Yuji Sugihara

    Ecotoxicology and Environmental Safety   200   2020年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.ecoenv.2020.110773

  • Impact of nZVI on the formation of aerobic granules, bacterial growth and nutrient removal using aerobic sequencing batch reactor 査読 国際誌

    Ramadan Eljamal, Inci Kahraman, Osama Eljamal, Ian P. Thompson, Ibrahim Maamoun, Gulsum Yilmaz

    Environmental Technology and Innovation   19   2020年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.eti.2020.100911

  • Magnetic zeolite synthesis for efficient removal of cesium in a lab-scale continuous treatment system 査読 国際誌

    Omar Falyouna, Osama Eljamal, Ibrahim Maamoun, Atsushi Tahara, Yuji Sugihara

    Journal of Colloid And Interface Science   571   66 - 79   2020年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jcis.2020.03.028

  • Enhancing the characteristics and reactivity of nZVI: Polymers effect and mechanisms 招待 査読 国際誌

    #Ramadan Eljamal, Osama Eljamal, #Ibrahim Maamoun, Gulsum Yilmaz, Yuji Sugihara

    Journal of Molecular Liquids   2020年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • Exploration of the reactivity of nanoscale zero-valent iron (NZVI) associated nanoparticles in diverse experimental conditions 査読 国際誌

    Relebohile Mokete, Osama Eljamal, Yuji Sugihara

    Chemical Engineering and Processing - Process Intensification   150   2020年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.cep.2020.107879

  • Promoting aqueous and transport characteristics of highly reactive nanoscale zero valent iron via different layered hydroxide coatings 査読

    Ibrahim Maamoun, Osama Eljamal, Ramadan Eljamal, Omar Falyouna, Yuji Sugihara

    Applied Surface Science   506   145018   2020年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Promoting aqueous and transport characteristics of highly reactive nanoscale zero valent iron via different layered hydroxide coatings
    In this study, nanoscale zero valent iron (Fe-0) was coated with different layered hydroxide coatings (Mg/Al/Ca(OH)(N)) to enhance its suspension stability in aqueous solution and transportability within the porous media. Morphological characteristics, crystallinity and surface elemental composition of the synthesized bare (Fe-0) and coated (C-Fe-0) were investigated using TEM, XRD and SEM-EDS analyses respectively. Suspension stability of Fe-0 and C-Fe-0 suspensions with different [Mg or Al or Ca/Fe: 0.2-1.0 wt/wt] coating ratios was investigated through several sets of 180 min settlement experiments. Moreover, packed-column experiments were conducted to evaluate the mobility of the prepared materials through porous media. Settlement results were highly consistent with mobility investigation, where C-Fe-0 [Mg/Fe](1.0 )showed the best performance in both with around 88% relative suspension efficiency and 93% penetration efficiency (5 times higher than Fe-0). A reciprocal relation was found between particle size, crystallinity and reactivity of the C-Fe-0, where the finest sizes exhibited higher crystallinity and better removal of the two targeted nutrients. Furthermore, the progressive dissolution of the Mg(OH)(2) shell compared with the other coating materials resulted in its superior prolonged reactivity. The presented C-Fe-0 could be promising towards enhanced performance of the reactive nanoparticles in the real water treatment applications.

    DOI: 10.1016/j.apsusc.2019.145018

  • Investigating the design parameters for a permeable reactive barrier consisting of nanoscale zero-valent iron and bimetallic iron/copper for phosphate removal 査読 国際誌

    Osama Eljamal, Ian P. Thompson, Ibrahim Maamoun, Tamer Shubair, Kareman Eljamal, Khemmathin Lueangwattanapong, Yuji Sugihara

    Journal of Molecular Liquids   299   2020年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.molliq.2019.112144

  • Preparation of new magnetic zeolite nanocomposites for removal of strontium from polluted waters 査読 国際誌

    Tamer Shubair, Osama Eljamal, Atsushi Tahara, Yuji Sugihara, Nobuhiro Matsunaga

    Journal of Molecular Liquids   288   2019年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.molliq.2019.111026

  • DEVELOPMENT OF CONTINUOUS SYSTEM BASED ON NANOSCALE ZERO VALENT IRON PARTICLES FOR PHOSPHORUS REMOVAL 査読

    Seiya Takami, Osama Eljamal, Ahmed M. E. Khalil, Ramadan Eljamal, Nobuhiro Matsunaga

    Journal of JSCE   7 ( 1 )   30 - 42   2019年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2208/journalofjsce.7.1_30

  • EXPERIMENTAL OBSERVATION OF BRICK-PATTERN RIPPLE FORMATION IN OSCILLATORY FLOW 査読

    Yukun Wang, Yunlong Li, Yuji Sugihara, Xianting Zhao, Nobuhiro Matsunaga, Osama Eljamal

    Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))   75 ( 2 )   I_551 - I_558   2019年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2208/jscejam.75.2_I_551

  • Iron based nanoparticles-zeolite composites for the removal of cesium from aqueous solutions 査読 国際誌

    Osama Eljamal, Tamer Shubair, Atsushi Tahara, Yuji Sugihara, Nobuhiro Matsunaga

    Journal of Molecular Liquids   277   613 - 623   2019年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.molliq.2018.12.115

  • Wastewater degradation by iron/copper nanoparticles and the microorganism growth rate 査読 国際誌

    Tareq W.M. Amen, Osama Eljamal, Ahmed M.E. Khalil, Nobuhiro Matsunaga

    Journal of Environmental Sciences (China)   74   19 - 31   2018年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jes.2018.01.028

  • Evaluation of nanoscale zero valent iron particles for the removal of cesium from aqueous solutions 査読 国際誌

    Tamer Shubair, Osama Eljamal, Nobuhiro Matsunaga

    IOP Conference Series: Materials Science and Engineering   454 ( 1 )   2018年12月

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)  

    DOI: 10.1088/1757-899X/454/1/012104

  • Phosphorus Removal from Aqueous Solution by SAKURAJIMA Volcanic Ash 査読

    TAKAMI Seiya, ELJAMAL Osama, MATSUNAGA Nobuhiro

    55th   22   2018年12月

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    記述言語:英語  

    Phosphorus Removal from Aqueous Solution by SAKURAJIMA Volcanic Ash

  • Phosphate Removal Through Nano-Zero-Valent Iron Permeable Reactive Barrier; Column Experiment and Reactive Solute Transport Modeling 査読 国際誌

    Ibrahim Maamoun, Osama Eljamal, Ahmed M.E. Khalil, Yuji Sugihara, Nobuhiro Matsunaga

    Transport in Porous Media   125 ( 2 )   395 - 412   2018年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s11242-018-1124-0

  • Chemical pathways of Nanoscale Zero-Valent Iron (NZVI) during its transformation in aqueous solutions 査読 国際誌

    Osama Eljamal, Relebohile Mokete, Nobuhiro Matsunaga, Yuji Sugihara

    Journal of Environmental Chemical Engineering   6 ( 5 )   6207 - 6220   2018年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jece.2018.09.012

  • Evaluation of sulfate-containing sludge stabilization and the alleviation of methanogenesis inhibitation at mesophilic temperature 査読 国際誌

    Tareq W.M. Amen, Osama Eljamal, Ahmed M.E. Khalil, Nobuhiro Matsunaga

    Journal of Water Process Engineering   25   212 - 221   2018年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jwpe.2018.08.004

  • Improvement of the chemical synthesis efficiency of nano-scale zero-valent iron particles 査読 国際誌

    Ramadan Eljamal, Osama Eljamal, Ahmed M.E. Khalil, Bidyut Baran Saha, Nobuhiro Matsunaga

    Journal of Environmental Chemical Engineering   6 ( 4 )   4727 - 4735   2018年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jece.2018.06.069

  • Methane yield enhancement by the addition of new novel of iron and copper-iron bimetallic nanoparticles 査読 国際誌

    Tareq W.M. Amen, Osama Eljamal, Ahmed M.E. Khalil, Yuji Sugihara, Nobuhiro Matsunaga

    Chemical Engineering and Processing - Process Intensification   130   253 - 261   2018年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.cep.2018.06.020

  • Scrutiny of interference effect of ions and organic matters on water treatment using supported nanoscale zero-valent iron 査読 国際誌

    Ahmed M.E. Khalil, Osama Eljamal, Tareq W.M. Amen, Yuji Sugihara, Nobuhiro Matsunaga

    Environmental Earth Sciences   77 ( 13 )   2018年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s12665-018-7661-6

  • Novel application of nanoscale zero valent iron and bimetallic nano-Fe/Cu particles for the treatment of cesium contaminated water 査読 国際誌

    Tamer Shubair, Osama Eljamal, Ahmed M. E. Khalil, Atsushi Tahara, Nobuhiro Matsunaga

    Journal of Environmental Chemical Engineering   6 ( 4 )   4253 - 4264   2018年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • Multilayer system of nanoscale zero valent iron and Nano-Fe/Cu particles for nitrate removal in porous media 査読 国際誌

    Tamer Shubair, Osama Eljamal, Ahmed M.E. Khalil, Nobuhiro Matsunaga

    Separation and Purification Technology   193   242 - 254   2018年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.seppur.2017.10.069

  • Performance of Nano-scale Zero-valent Iron for Nitrate Reduction in Aqueous Solution Using a Laboratory-scale Continuous-flow System 査読 国際誌

    Khalil Ahmed M.E., Eljamal O., Saha B.B., Matsunaga N.

    Chemosphere   197   502 - 512   2018年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • Evaluation of nano zero valent iron effects on fermentation of municipal anaerobic sludge and inducing biogas production 国際誌

    Tareq W.M. Amen, Osama Eljamal, Ahmed M.E. Khalil, Nobuhiro Matsunaga

    IOP Conference Series: Earth and Environmental Science   67 ( 1 )   2017年6月

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    記述言語:英語   掲載種別:研究論文(国際会議プロシーディングス)  

    DOI: 10.1088/1755-1315/67/1/012004

  • Treatment and Regeneration of Nano-scale Zero-valent Iron Spent in Water Remediation 査読 国際誌

    Khalil Ahmed M. E., Eljamal Osama, Eljamal Ramadan, Sugihara Yuji, Matsunaga Nobuhiro

    Evergreen : joint journal of Novel Carbon Resource Sciences & Green Asia Strategy   4 ( 1 )   21 - 28   2017年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.5109/1808449

  • Optimized nano-scale zero-valent iron supported on treated activated carbon for enhanced nitrate and phosphate removal from water 査読 国際誌

    Ahmed M.E. Khalil, Osama Eljamal, Tareq W.M. Amen, Yuji Sugihara, Nobuhiro Matsunaga

    Chemical Engineering Journal   309   349 - 365   2017年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.cej.2016.10.080

  • Experimental and modeling column study of phosphorus removal by permeable reactive materials 査読 国際誌

    Osama Eljamal, Ahmed M.E. Khalil, Nobuhiro Matsunaga

    Int J Environ Agric Res   3   62 - 70   2017年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • Phosphorus removal from aqueous solution by nanoscale zero valent iron in the presence of copper chloride 査読 国際誌

    Osama Eljamal, Ahmed M.E. Khalil, Yuji Sugihara, Nobuhiro Matsunaga

    Chemical Engineering Journal   293   225 - 231   2016年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.cej.2016.02.052

  • Promoting nitrate reduction kinetics by nanoscale zero valent iron in water via copper salt addition 査読 国際誌

    Ahmed M.E. Khalil, Osama Eljamal, Skander Jribi, Nobuhiro Matsunaga

    Chemical Engineering Journal   287   367 - 380   2016年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.cej.2015.11.038

  • Recent Activities of International Education in IGSES at Kyushu University 招待 査読

    OSAMA ELJAMAL

    Journal of Japanese Society for Engineering Education   2015年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • Sorption Kinetic of arsenate as water contaminant on Zero Valent Iron 査読 国際誌

    OSAMA ELJAMAL

    Journal of Water Resource and Protection   2013年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • Removal of Phosphorus from Water Using Marble Dust as Sorbent Material 査読 国際誌

    OSAMA ELJAMAL

    Journal of Environmental Protection   2012年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • A mathematical model of biological clogging of soil-sawdust media 査読 国際誌

    Eljamal, Osama, Eljamal, Osama, Jinno, Kenji, Hosokawa, Tosao

    Journal of Environmental Hydrology   16   1 - 12   2008年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • Exceptional contribution of iron nanoparticle and aloe vera biomass additives to biogas production from anaerobic digestion of waste sludge

    Eljamal, O; Eljamal, R; Falyouna, O; Maamoun, I; Thompson, IP

    ENERGY   302   2024年9月   ISSN:0360-5442 eISSN:1873-6785

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    出版者・発行元:Energy  

    This study aims to investigate, for the first time, the improvement of the anaerobic digestion (AD) performance of waste sludge (WS) by utilizing Aloe vera waste (AVW) and Fe0 nanoparticles. Accordingly, a series of biogas generation experiments were conducted at different mixing ratios (AVW:WS = 0:1, 1:1, 2:1, and 3:1), to find out the optimum ratio for maximizing biogas generation. To gain insights into the improved biogas generation by the addition of AVW, pH value was monitored during the fermentation process and adjusted to different initial values (3, 7, and 12). Moreover, the effect of different concentrations (10 and 50 mg/L) and dosing times (0, 6, 12, 24, 48, and 96 h) of Fe0 nanoparticles on the digestion of the optimized ratio (AVW:WS = 2:1) were investigated. Results showed that the optimum ratio (AVW:WS = 2:1) resulted in improving biogas and methane generation by 62.5 % and 96.0 %, respectively, which is an excellent improvement rate of biogas and methane generation compared with the previously reported values in the literature. The addition of Fe0 at the optimum concentration (10 mg/L) and dosing time (12 h) to the optimized ratio (AVW:WS = 2:1) resulted in enhancing methane generation by 146.9 %.

    DOI: 10.1016/j.energy.2024.131761

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  • Compatibility of Molybdenum Disulfide and Magnesium Fluorinated Alkoxyaluminate Electrolytes in Rechargeable Mg Batteries

    Falyouna, O; Idham, MF; Eljamal, O; Mandai, T

    BATTERIES & SUPERCAPS   2024年7月   eISSN:2566-6223

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    出版者・発行元:Batteries and Supercaps  

    Molybdenum disulfide (MoS2)-based cathodes have exhibited good electrochemical reactions in all phenyl complex (APC) electrolytes. However, APC electrolytes are highly corrosive and susceptible to oxidation. Alternatively, magnesium fluorinated alkoxyaluminate electrolyte (Mg[Al(HFIP)4]2) is a pioneering chloride-free electrolyte with remarkable electrochemical activity in rechargeable Mg batteries (RMBs). This study aims to investigate the compatibility of various MoS2 nanomaterials with Mg[Al(HFIP)4]2 in RMBs. Seven MoS2 nanomaterials were synthesized under different hydro/solvothermal conditions and evaluated as cathode materials in RMBs. The results revealed that the electrochemical activity of the as-synthesized MoS2 in RMBs significantly varied and MoS2 with high content of 1T-phase (M5) exhibited the best specific capacity of ca. 35 mAh g−1. Heteroatom doping, graphene oxide (GO) incorporation, and dual-salt electrolytes were employed to enhance the electrochemical performance of M5. The electrochemical tests showed that all doped-MoS2 and GO-MoS2 delivered poor specific capacities (<20 mAh g−1), properly due to the disorder of the cathode material and the entrapment of Mg2+ ions. In contrast, dual-salt electrolytes (0.3 M Mg[Al(HFIP)4]2/0.3 M LiCl) improved the initial specific capacity by 242 %. This is attributed to the preferential intercalation of Li+ ions that reduces the diffusion energy barrier and facilitates the intercalation of Mg+2 ions.

    DOI: 10.1002/batt.202400231

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  • Changing patterns of household water consumption and conservation behaviour in Bangladesh: an exploration in the context of COVID-19 pandemic

    Singha, B; Eljamal, O; Karmaker, SC

    INTERNATIONAL JOURNAL OF INNOVATION AND SUSTAINABLE DEVELOPMENT   18 ( 1-2 )   106 - 122   2024年   ISSN:1740-8822 eISSN:1740-8830

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:International Journal of Innovation and Sustainable Development  

    COVID-19 prevention and control strategies have relied heavily on water. Thus, the goal of this research was to realise how the pandemic changed household water usage and conservation practices. We collected data from 418 participants across Bangladesh using an online survey. Our study revealed that during COVID-19, individuals used more water to wash hands, shower, wash foods after purchasing, and wash clothes than they did previously. However, no significant variations in water conservation were noted between before and during COVID-19. Individuals with a higher level of education, who resided in an urban setting, and had elderly family members in their houses were more likely than others to engage in water consumption while less likely to involve in conservation behaviours during COVID-19. Therefore, households should conserve water by using water-saving technologies, reusing treated water, storing rainwater, and establishing a water-saving culture in their homes to meet future demands.

    DOI: 10.1504/IJISD.2024.135259

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  • A study on Zerovalent Iron Nanoparticles, Fe<sup>2+</sup> and Fe<sup>3+</sup> enhanced double chamber microbial fuel cells

    Xie Y., Eljamal O.

    International Exchange and Innovation Conference on Engineering and Sciences   9   299 - 304   2023年10月   ISSN:24341436 eISSN:24341436

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    記述言語:英語   出版者・発行元:九州大学大学院総合理工学府  

    Microbial fuel cells (MFCs) are a promising and rapidly evolving discipline, which is mainly applied to convert chemical energy of urban wastewater into electrical energy. Based on past research achievements, iron components (zerovalent iron nanoparticles, Fe2+ and Fe3+) has positive enhancements on MFCs by increasing the activity of electroactive bacteria on anode chamber. In this study, the effect of zerovalent iron nanoparticles Fe2+, Fe3+ and their combinations on a lab-scale double chamber MFCs was evaluated. Based on the results achieved, the best performance was 10 mg/L Fe2+ modified anolyte, which achieved accumulative voltage improvement of 216.8%. Furthermore, it was found that more than 20 mg/L of total iron components reduces the power generation of MFCs and this is deemed excessively high for this application. Lastly, a removal rate of 91.5% for Total Volatile Solids (TVS) was achieved after 30 days of operation.

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  • Hydrogen production of anaerobic digestion: A review

    Jianning D., Eljamal O.

    International Exchange and Innovation Conference on Engineering and Sciences   9   247 - 252   2023年10月   ISSN:24341436 eISSN:24341436

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    記述言語:英語   出版者・発行元:九州大学大学院総合理工学府  

    Low hydrogen production which is only 10% of the gas production is a disadvantage of bio-hydrogen production in an anaerobic digestion system. The two-stage AD process can achieve hydrogen production and methane production in two reactors respectively. In most studies, the pH of the hydrogen-producing reactor is controlled at 5.5, at this time the main hydrogen-producing bacteria Clostridium butyricum can have the maximum hydrogen production rate. In addition, HRT, temperature, and the concentration of external additives are also important operating conditions for the two-stage AD process. When the added concentration of NZVI is over 30 mM, the methane production process will be inhibited, but the hydrogen production can be promoted. Therefore, how NZVI promotes hydrogen production in the two-stage AD process is still worthy of attention in the future research.

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  • Mini review on the application research of nanoscale zero valent iron in water treatment

    Yi L., Eljamal O.

    International Exchange and Innovation Conference on Engineering and Sciences   9   313 - 320   2023年10月   ISSN:24341436 eISSN:24341436

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    記述言語:英語   出版者・発行元:九州大学大学院総合理工学府  

    Nanoscale zero-valent iron (nZVI) is highly efficient in environmental pollution control technology, owing to its unique zero-valent iron core-iron oxide surface, which exhibits exceptional adsorption and reduction properties. This paper provides a comprehensive understanding of the physical and chemical properties of nano-iron, with a primary focus on the preparation of nZVI. While nZVI finds extensive application in sewage treatment, it also demonstrates outstanding performance in the remediation of soil organic matter and heavy metal pollution, delivering excellent results and displaying good fluidity.

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  • Insights into machine-learning modeling for Cr(VI) removal from contaminated water using nano-nickel hydroxide

    Maamoun, I; Rushdi, MA; Falyouna, O; Eljamal, R; Eljamal, O

    SEPARATION AND PURIFICATION TECHNOLOGY   308   2023年3月   ISSN:1383-5866 eISSN:1873-3794

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Separation and Purification Technology  

    The aim of this study is to employ machine learning (ML) in providing high-accuracy prediction of Cr(VI) removal efficiency by nickel hydroxide (n-Ni(OH)2) unconventional sorbent, towards the new era of artificial intelligence (AI) applications in (waste)water treatment. Hence, a reliable ML modeling was conducted based on the experimental investigation, considering different reaction parameters, including n-Ni(OH)2 dosage, initial pH, reaction temperature, and initial Cr(VI) concentration. Linear regression model was selected as the suitable regression model with respect to the obtained reasonable correlation and the less training time and evaluation time, comparing to other considered regression techniques. The adopted linear regression model, for the time-corresponding Cr(VI) removal efficiencies, exhibited satisfactory prediction accuracy. Furthermore, the importance of models’ coefficients was determined and implied the high importance of the dosage feature. In contrast, the initial concentration feature was significantly crucial at the early stage of the reaction (5–30 min) more than that at the late stage (60–120 min). The contributive effect (%) of the investigated features was mainly concentrated at the early stage of the reaction (5–10 min), with an average range of 50–80 %, which was in agreement with the experimental findings of the rapid and full removal of Cr(VI) by n-Ni(OH)2. The elucidated insights into the effects of different factors that influence Cr(VI) removal process by n-Ni(OH)2 revealed the underlying interactions and removal pathways, which shall benefit other researchers in the preliminary design of pilot-scale applications and anticipating the predicted performance.

    DOI: 10.1016/j.seppur.2022.122863

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  • Improved immobilization of Re(VII) from aqueous solutions via bimetallic Ni/Fe0 nanoparticles: Implications towards Tc(VII) removal 査読

    Ibrahim Maamoun, Kohei Tokunaga, Terumi Dohi, Futoshi Kanno, Omar Falyouna, Osama Eljamal, Kazuya Tanaka

    Frontiers in Nuclear Engineering   2 ( 1142823 )   2023年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.3389/fnuen.2023.1142823

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  • Quantifying the direct and indirect effect of socio-psychological and behavioral factors on residential water conservation behavior and consumption in Japan

    Singha, B; Karmaker, SC; Eljamal, O

    RESOURCES CONSERVATION AND RECYCLING   190   2023年3月   ISSN:0921-3449 eISSN:1879-0658

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Resources, Conservation and Recycling  

    Promoting residential water conservation is an important aspect of addressing water shortages caused by the rapidly increasing demand for water in both developed and developing countries. For this purpose, to measure how different social, psychological, and behavioral variables influence individual water use and conservation behavior, a questionnaire survey of 514 Japanese adults was conducted. Structural equation modeling was used to examine the direct and indirect effects of these factors on consumption and conservation practices by controlling multiple demographic variables. The suggested model explained 55% and 57% of the variation in water consumption and conservation behavior respectively. Results suggest that families are more likely to adopt water conservation practices and use less water if they have positive attitude, greater awareness and responsibility about water issues, stronger emotions, habits and involvement in water-saving initiatives or campaigns. An ordered logistic regression analysis was also carried out to confirm the robustness of the results.

    DOI: 10.1016/j.resconrec.2022.106816

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  • Arsenic removal from contaminated water utilizing novel green composite<i> Chlorella</i><i> vulgaris</i> and nano zero-valent iron

    Islam, MS; Maamoun, I; Falyouna, O; Eljamal, O; Saha, BB

    JOURNAL OF MOLECULAR LIQUIDS   370   2023年1月   ISSN:0167-7322 eISSN:1873-3166

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Molecular Liquids  

    Arsenic waste must be carefully managed because of the adverse effects of arsenic in wastewater on the ecosystem. In the present study, an environmentally friendly novel composite of Chlorella vulgaris microalgae and nano-zero valent iron (NZVI) was employed as an adsorbent to eliminate arsenic from the aqueous environment. Fourier Transform Infrared spectroscopy, X-ray diffraction, and scanning electron microscope images were used to characterize and analyze the CV/NZVI composites. Batch tests using initial arsenic concentrations ranging from 5 to 100 mg/L were conducted to evaluate removal efficiencies. According to kinetic analysis, the best model for fitting the experimental data was the pseudo first-order model, which had the lowest Akaike information criterion (AIC), and Bayesian information criterion (BIC) values of −23.878 and −7.902, respectively. Results alluded that physisorption is the primary mechanism influenced by As-removal by CV/NZVI composite. Due to the negative sign of the enthalpy and Gibbs free energy, the thermodynamic investigation revealed that the adsorption reaction was exothermic and spontaneous. The thermodynamic analysis also affirmed that the arsenic removal process involved primarily physisorption and slight chemisorption phenomena. Meanwhile, 1.5 g/L CV/NZVI dosage achieved 99 % As(V) removal efficiency in synthetic groundwater systems, confirming the high potential of the composite in complex aqueous systems.

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  • Bench-scale injection of magnesium hydroxide encapsulated iron nanoparticles (nFe0@Mg(OH)2) into porous media for Cr(VI) removal from groundwater

    Maamoun, I; Falyouna, O; Eljamal, R; Idham, MF; Tanaka, K; Eljamal, O

    CHEMICAL ENGINEERING JOURNAL   451   2023年1月   ISSN:1385-8947 eISSN:1873-3212

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Chemical Engineering Journal  

    Chromium (VI) contamination in groundwater represents a significant threat to the current and future groundwater resources. Thus, in this work detailed investigation was conducted on the injection of magnesium hydroxide encapsulated iron nanoparticles (nFe0@Mg(OH)2) into a 3-D bench-scale groundwater treatment system for Cr(VI) removal. Cr(VI) and total iron concentration profiles were determined for the injection of both nFe0 and nFe0@Mg(OH)2 into porous media. The results indicated the expected poor mobility of nFe0, which caused the accumulation of the injected mass within the injection zone and the low spreading range along the length of the aquifer. The injection of nFe0@Mg(OH)2 into the groundwater treatment system for 80 consecutive cycles resulted in a clear enhancement in preventing the rapid corrosion of the iron core and around 20% improvement in the final Cr(VI) removal efficiency compared with that of nFe0. The injected nFe0@Mg(OH)2 maintained the 100% Cr(VI) removal efficiency for 30 post-injection cycles. Such a promising potential of the nFe0@Mg(OH)2, proposed it as one of the perfect candidates for in-situ water treatment applications, as a reactive nanomaterial with enhanced features, in terms of the prolonged reactive performance and the widespread of the injection zone to cover a larger contaminated area within the porous media.

    DOI: 10.1016/j.cej.2022.138718

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  • Statistical optimization of nZVI chemical synthesis approach towards P and NO<sub>3</sub><SUP>-</SUP> removal from aqueous solutions: Cost-effectiveness & parametric effects 国際誌

    Maamoun, I; Eljamal, R; Eljamal, O

    CHEMOSPHERE   312 ( Pt 1 )   137176 - 137176   2023年1月   ISSN:0045-6535 eISSN:1879-1298

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Chemosphere  

    This study aims to conduct statistical optimization of nZVI synthesis parameters towards the removal efficiency of phosphorus (P) and nitrate (NO3−), considering for the first time the cost-effectiveness index. The detailed statistical analysis was implemented to evaluate the main effects and interactions of eight synthesis parameters, including reductant concentration (RC), reductant delivery rate (RDR), reductant liquid volume (RLV), pH, aging time (AGT), mixing speed (MS), temperature (T), and precursor concentration (PC). Results revealed that the experimental optimization of the synthesis factors improved the removal efficiency of NO3− and P by 27 and 9%, respectively, with respect to that before the optimization. ANOVA statistical results indicated the significance of RP (%) and RNO3− (%) models with F-values of 4.480 × 108 and 23,755.08, respectively. Moreover, the p-values of all the eight main linear effects were less than 0.05 in both two models of RP (%) and RNO3− (%). However, most of the interaction parameters were not statistically significant (higher than 0.05) in the case of RNO3− (%), which is unlike RP (%) where all interaction parameters were statistically significant (less than 0.05). The normal probability plots of factors effects provided significant evidence of the significance of the investigated parameters RC had the highest positive statistically significant effect on RP (%) followed by RLV, RDR, MS and T. In case of RNO3− (%), RLV had the highest positive significant effect, followed by AGT > RDR > pH > T > MS. The cost-effective optimal constraints in this study resulted in the best economically optimized values of the nZVI synthesis parameters in terms of higher reactivity and reduced synthesis cost.

    DOI: 10.1016/j.chemosphere.2022.137176

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  • Investigating the Combined Sensitivity Effects of the Electrodes Density and the Total Suspended Solids on the Turbidity Removal in an Electrocoagulation Reactor

    Seladji F., El Aissaoui El Meliani M.E.A., Tidjani A.E.B., Sun M., Choubane H., Eljamal O., Iddou A., Terashima M.

    International Review of Civil Engineering   14 ( 1 )   56 - 65   2023年   ISSN:2036-9913 eISSN:2533-168X

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:International Review of Civil Engineering  

    – This paper aims to comprehend the sensitivity effect of the electrode density combined with the total suspended solids on the improvement of the turbidity’ removal. To this extent, three electro-coagulation lab-scale reactors (300 mm in length, 100 mm in width and 350 mm in height) equipped with aluminium made electrodes have been built to conduct the experiments with a test volume of 9 L. Consequently, the results have revealed that the removal efficiencies of chemical oxygen demand, total suspended solids, and turbidity are 54.65 %, 71.93% and 34.27% respectively for the reactor No.1. Regarding reactor No.2, the chemical oxygen demand, the total suspended solids, and the Turbidity's removal efficiency are 51.24%, 65.24% and 47.13%, respectively. Finally, the removal efficiencies in reactor No.3 are 54.65 %, 71.93% and 34.27%, respectively, for the chemical oxygen demand, the total suspended solids and the Turbidity, which led to considering implementing a full-scale electrocoagulation process in El Kerma wastewater treatment plant. Moreover, the results obtained have allowed developing statistically a quadratic polynomial model to describe the effluent turbidity. The model outcomes have showed an acceptable coefficient of determination with a significant corresponding probability of < 0.05 regarding the electrode density. Copyright © 2023 Praise Worthy Prize S.r.l.-All rights reserved.

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  • Sustainable technologies for the removal of Chloramphenicol from pharmaceutical industries Effluent: A critical review

    Falyouna, O; Maamoun, I; Ghosh, S; Malloum, A; Othmani, A; Eljamal, O; Amen, TWM; Oroke, A; Bornman, C; Ahmadi, S; Dehghani, MH; Mahvi, AH; Nasseri, S; Tyagi, I; Suhas; Koduru, JR

    JOURNAL OF MOLECULAR LIQUIDS   368   2022年12月   ISSN:0167-7322 eISSN:1873-3166

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    記述言語:英語   出版者・発行元:Journal of Molecular Liquids  

    Despite the carcinogenic and other adverse health effects ofchloramphenicol (CAP), it is frequently detected in different water sources (e.g., groundwater, surface water, wastewater effluents, etc.) due to ongoing, illegal, and abusive application of CAP in veterinary medicine. Although extensive research has been carried out to develop effective treatment technologies to remove the persistent CAP from aqueous mediums, yet there is no critical review of these studies to the best of our reach This review will be the first in the literature to comprehensively summarize the state-of-the-art treatment techniques for CAP removal from water. We report the removal of CAP by adsorption, biodegradation, nanoscale zerovalent iron technology (nZVI), and advanced oxidation processes (AOPs). The result shows that carbon-based adsorbents have more qmax equal 892.86 mg/g for Porous carbon material from Enteromorpha prolifera. The Langmuir- Freundlich isotherm and pseudo-second order kinetics model were reported to best describe the isotherm and kinetic model respectively. Removing the CAP via biodegradation would achieve the advantages of low operating costs, and environmental friendliness. The process of AOPs among the various treatment options can be a promising method for CAP degradation in water. This review comprehensively summarizes the state-of-the-art treatment techniques for CAP removal from water. Particularly, serving as an inclusive reference for future researchers to easily define the research gabs in the literature and plan for their future work in developing novel treatment methods to decontaminate CA-contaminated waters.

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  • Chloramphenicol removal from water by various precursors to enhance graphene oxide-iron nanocomposites

    Idham, MF; Falyouna, O; Eljamal, R; Maamoun, I; Eljamal, O

    JOURNAL OF WATER PROCESS ENGINEERING   50   2022年12月   ISSN:2214-7144

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Water Process Engineering  

    Due to synthesis variation affecting various graphene oxide (GO) physicochemical parameters and cost efficiency aspects, the present study investigated the influence of GO precursor components for GO precipitated nZVI nanocomposite (nZVI/GO) and optimized removal conditions to remove chloramphenicol (CAP) from water. In order to synthesize nZVI/GO nanocomposites, four methods of GO precursor synthesis were used, denoted GO1, GO2, GO3, and GO4. A novel synthesis process is introduced based on economic and time-less-consuming protocols to produce GO precursor. A series of desorption experiments were also implemented in various eluents to clarify the CAP removal mechanism. Interestingly, this study demonstrated the substantial impact of GO precursor on the nanocomposite performance in eliminating CAP. The introduced novel GO successfully served as an excellent nZVI precipitation medium and enhanced CAP removal efficiency. Empirical optimization demonstrated that nZVI/GO4-1:1 could eliminate up to 91 % of 100 mg/L CAP by dosage as low as 0.25 g/L at pH 5. nZVI/GO4 displayed CAP removal stability throughout a more comprehensive pH range, and remarkable recyclability, making it more promising and practical than bare nZVI and other analyzed nanocomposites. Kinetics data demonstrated a high degree of compatibility with the pseudo-first-order (PFO) and pseudo-second-order (PSO). Through kinetics and statistical analyses, desorption experiments, FTIR spectroscopy, and EDX analysis, nZVI/GO4 removed some of the CAP through the adsorption mechanism controlled by physisorption and chemisorption. In contrast, the oxidation mechanism eliminated the remaining CAP.

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  • Effect of water matrix on ligand-assisted adsorption of ciprofloxacin from aqueous solutions by zerovalent iron nanoparticles

    Falyouna O., Maamoun I., Idham M.F., Eljamal O.

    International Exchange and Innovation Conference on Engineering and Sciences   8   62 - 67   2022年10月   ISSN:24341436 eISSN:24341436

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    記述言語:英語   出版者・発行元:九州大学大学院総合理工学府  

    The adsorption of the antibiotic ciprofloxacin (CIP) from natural water and wastewater could be challenging due to the presence of competing compounds and elements. This study illustrates the negative influence of ionic strength, coexisting ions, and natural organic matter on the adsorption of CIP by oxalate-modified zerovalent iron nanoparticles (Fe0/oxalate). The results showed that the ionic strength of aqueous solution slightly decreased CIP removal efficiency from 95.43% to 85.23% after increasing sodium chloride concentration to 100 mM. On the contrary, the competence of (Fe0/oxalate) nanoparticles in adsorbing CIP slightly dropped from 95.43% to 94.42% due to the increase of humic acid from 0 to 40 mg L-1. Also, the outcomes conclude that the inhibitory effect of 10 mM of coexisting ions was ranked as follows: K+ < CO3 2– < Ca2+ < SO₄2– < NO3 – <Mg2+.

    DOI: 10.5109/5909063

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  • Application of Magnetotelluric Geophysical Technique to Study the Subsurface Structural Setting in Marsa Alam, Eastern Desert, Egypt

    Khalil A., Eljamal O.

    International Exchange and Innovation Conference on Engineering and Sciences   8   426 - 431   2022年10月   ISSN:24341436 eISSN:24341436

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    記述言語:英語   出版者・発行元:九州大学大学院総合理工学府  

    ABSTARCT: It is important to explain the subsurface geological structures in some active regions in Egypt, especially to estimate the fault activity. The present work is aimed to delineate the subsurface structural setting in Marsa Alam region, Eastern Desert, Egypt. In this research, magnetotelluric (MT) method will be applied to investigate the active subsurface structures. MT technique can detect the crustal fluids along active faults due to their high electrical conductivity anomalies. For this study, we conducted MT data using ADU-07 instruments in a net concentrating around the active faults in Marsa Alam area. The major strike direction of the studied area was determined based on the advanced analysis techniques of MT impedance tensor such as polar impedance plots, tipper, skew and two-dimensional inversion. The analysis and interpretation of MT data gave reasonable results about the subsurface structure of the selected studied active area.

    DOI: 10.5109/5909128

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  • Antibiotics Removal from Aqueous Environments: A Mini Review on Graphene Oxide-based Nanomaterials Application

    Idham M.F., Falyouna O., Eljamal R., Maamoun I., Eljamal O.

    International Exchange and Innovation Conference on Engineering and Sciences   8   340 - 346   2022年10月   ISSN:24341436 eISSN:24341436

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    記述言語:英語   出版者・発行元:九州大学大学院総合理工学府  

    Antibiotics are pharmaceutical emerging contaminants (ECs) that contaminate the environment and jeopardize public health. More dangerously, the widespread consumption of antibiotics and their impact on water contamination foster the formation and evolution of antibiotic-resistant genes in microbes. Graphene Oxide (GO) is an emerging carbon material with a great potential to operate as an adsorbent to remove antibiotics from water due to its unique physical and chemical properties. Thus, this study briefly reviews topics related to antibiotic removal from water using GO-based materials. This research also summarizes the benefits of GO structural properties, adsorption mechanisms, and the affinity of the GO synthesis method to the quality of the GO produced.

    DOI: 10.5109/5909114

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  • A mini-Review on Transportation and Fate of Silver Nanoparticles Released from Consumer Products: Ecological Risk Assessments

    Radwan I.M., Eljamal O.

    International Exchange and Innovation Conference on Engineering and Sciences   8   52 - 61   2022年10月   ISSN:24341436 eISSN:24341436

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    記述言語:英語   出版者・発行元:九州大学大学院総合理工学府  

    Over the last few decades, engineering nanomaterials (ENMs) have been incorporated into a variety of commercially-available consumer products (CPs). Silver Nanoparticles (AgNP( are the most used ENMs in CPs, mainly due to their antibacterial properties. To better understand the fate, transport, and environmental impacts of AgNPs, many studies have been conducted. However, this research has been focused mainly on pristine AgNPs either lab-synthesized or purchased commercially. While these studies have contributed greatly to a better understanding of AgNP toxicology, they have not addressed the environmental concerns associated with AgNP release from CPs. This review assesses previously published work on routes of environmental exposure, characterization techniques, potential ecological risks of AgNPs, and the identification of available toxicity assays for AgNPs in CPs. A major objective of this review is to summarize and identify key issues, knowledge gaps, and potential directions for future research related to AgNPs released from CPs.

    DOI: 10.5109/5909062

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  • Evaluating the Social and Psychological Factors about the Public Acceptance of Treated Wastewater Reuse: A Review

    Singha B., Eljamal O.

    International Exchange and Innovation Conference on Engineering and Sciences   8   234 - 238   2022年10月   ISSN:24341436 eISSN:24341436

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    記述言語:英語   出版者・発行元:九州大学大学院総合理工学府  

    To address water scarcity, treated wastewater has been demonstrated to be a more practical and environmentally beneficial solution than untreated wastewater. Nowadays, it is well acknowledged that social marketing and advocacy are inefficient at getting people to use recycled water. It is widely understood that the key components of any reuse project's success are public attitudes and acceptance of water reuse. This paper aims to present a summary of the literature on water reuse, with a focus on issues that may influence how the public perceives water reuse. In this study, a variety of social, psychological, and demographic variables are linked to higher levels of public support for wastewater use. The level of knowledge in this field is included in the conclusion, along with advanced suggestions and policy implications for improving our understanding of the socio-psychological and technological forces behind water reuse for multiple applications.

    DOI: 10.5109/5909097

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  • The role of coated nanoscale zero-valent iron with magnesium hydroxide in improving methane production during the anaerobic digestion of waste sludge

    Eljamal R., Maamoun I., Idham M.F., Eljamal O.

    International Exchange and Innovation Conference on Engineering and Sciences   8   291 - 296   2022年10月   ISSN:24341436 eISSN:24341436

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    記述言語:英語   出版者・発行元:九州大学大学院総合理工学府  

    This study investigates the role of coated/Fe0 in improving the anaerobic digestion process for the purpose of increasing methane gas production rate as one of the renewable sources of energy. Up until now, the anaerobic digestion of methane production by utilizing different environmental wastes is facing many challenges including the low conversion of biomass into energy. Therefore, in this work, we used the coated/Fe0 with magnesium hydroxide as an additive during the anaerobic digestion of waste sludge. Two semi-continuous bioreactors were operated with and without adding the coated/Fe0 over 70 days. The result showed that the addition of coated/Fe0 enhanced methane production by 120% compared with the control reactor. The experimental and predicted methane values have proved the great potential of coated/Fe0 towards the practical applications of AD process.

    DOI: 10.5109/5909106

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  • Opportunities to exploit stored energy in wastewater

    Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)   8   23 - 26   2022年10月   ISSN:24341436 eISSN:24341436

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    記述言語:英語   出版者・発行元:Interdisciplinary Graduate School of Engineering Sciences, Kyushu University  

    DOI: 10.5109/5909051

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  • Water conservation behavior: Exploring the role of social, psychological, and behavioral determinants 国際誌

    Singha, B; Eljamal, O; Karmaker, SC; Maamoun, I; Sugihara, Y

    JOURNAL OF ENVIRONMENTAL MANAGEMENT   317   115484 - 115484   2022年9月   ISSN:0301-4797 eISSN:1095-8630

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Environmental Management  

    Water conservation is vital to safeguard future water availability when natural resources like water become extremely scarce. It is fundamental to understand the significant determinants of water conservation activities which can also facilitate the implementation of appropriate policies for water demand management. Thus, the goal of this study was to determine the important social, psychological, and behavioral factors of water conservation behavior. A questionnaire survey was used to collect the data from 625 international students and employees from different universities in Japan. The structural equation modeling demonstrated that the proposed model explained 46% of the variation in water conservation behavior. Awareness of water issues was highly related to attitude, responsibility, and culture. Except for culture, attitude and responsibility were significantly connected with emotion. Finally, emotion, habit, culture and involvement were significantly and positively associated with water conservation behavior. These factors are incorporated for the first time in this study into a single model to better understand individual water conservation behavior. The sequential regression model showed that all determinants including demographic factors raised the variation's proportion by 53% in water conservation. Female participants had a significantly higher positive attitude, emotion, and water conservation behavior than male participants. Older participants exhibited higher levels of awareness, habit, culture, and water conservation behavior when compared to younger people. Lastly, participants believed that the most dominant component in water conservation behavior was the awareness of water issues. These findings could assist policymakers in raising household awareness, accountability, and involvement towards water conservation efforts.

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  • Promotion of ciprofloxacin adsorption from contaminated solutions by oxalate modified nanoscale zerovalent iron particles

    Falyouna, O; Idham, MF; Maamoun, I; Bensaida, K; Ashik, U; Sugihara, Y; Eljamal, O

    JOURNAL OF MOLECULAR LIQUIDS   359   2022年8月   ISSN:0167-7322 eISSN:1873-3166

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Molecular Liquids  

    Water contamination by ciprofloxacin (CIP) is a global and emerging issue because it increases the risk of infection by antimicrobial resistant bacteria. CIP removal from water by iron nanoparticles (Fe0) with the presence of oxalate hasn't been reported yet. The present study demonstrated that the addition of oxalate to Fe0 nanoparticles improved the removal of 100 mg L−1 of CIP from 45.04% to 95.74% under the following optimum conditions: [Fe0] = 0.3 g L−1, [oxalate] = 0.3 mM, initial pH = 7, and temperature = 25 ℃. Furthermore, the experimental results illustrated that high concentrations of dissolved oxygen in the aqueous solution greatly decreased the removal efficiency of CIP by (Fe0/oxalate) system from 97.69% (N2 atmosphere) to 67.47%. Similarly, the performance of (Fe0/oxalate) system declined from 95.43% to 85.23% because of increasing the ionic strength of the solution from 0 to 100 mM. In contrast, the influence of humic acid (0 – 40 mg L−1) on the removal of CIP by (Fe0/oxalate) system was neglectable. Also, the negative impact of coexisting ions on the competence of (Fe0/oxalate) system was in the following order: Mg2+ > NO3– > SO₄2- > Ca2+ > CO32– > K+. In addition, the desorption experiments and the results of SEM-EDS, XRD, and FTIR revealed that physisorption and chemisorption were responsible for CIP removal by (Fe0/oxalate) system as the addition of 0.3 mM of oxalate boosted the surface complexation between Fe0 nanoparticles and the carboxylic, ketone, and piperazinyl groups in CIP. These results were supported by the outcomes of kinetics, isotherm, and thermodynamic analysis. Moreover, oxalate addition significantly reduced the treatment cost of 1 L of 100 mg L−1 of CIP and the generated sludge by approximately 55.68% and 57%, respectively. Finally, this study proved that (Fe0/oxalate) system is inexpensive, practical, and more efficient than most of the reported Fe0-based systems with a maximum adsorption capacity of 294.66 mg g−1.

    DOI: 10.1016/j.molliq.2022.119323

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  • Novel Graphene-Based Foam Composite As a Highly Reactive Filter Medium for the Efficient Removal of Gemfibrozil from (Waste)Water

    Khalil, AME; Han, L; Maamoun, I; Tabish, TA; Chen, Y; Eljamal, O; Zhang, SW; Butler, D; Memon, FA

    ADVANCED SUSTAINABLE SYSTEMS   6 ( 8 )   2022年8月   ISSN:2366-7486 eISSN:2366-7486

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Advanced Sustainable Systems  

    Graphene-based materials have emerged as alternative adsorbents, but their success in removing pharmaceutical contaminants has been limited due to degradation caused by restacking and limited control over their sizes and porosities. Driven by this issue, in the current study, to counteract the restacking behavior, graphene sheets are supported on a thread/rod-like matrix structure in a boron nitride foam material, and a novel porous composite foam-supported graphene is synthesized. The as-prepared novel composite offers extraordinary features, such as high absorption kinetics, large available surface area, high porosity (>98%), ecofriendliness and cost-effective synthesis, and excellent affinity to emerging pharmaceutical contaminants. When batch-testing graphene-based foam material and porous graphene nanosheets to remove gemfibrozil (GEM) from wastewater samples, rapid adsorption kinetics (<5 min) are exhibited by the graphene-based foam. Column filter studies are conducted for both materials to test their performance in removing GEM from distilled water, synthetic graywater, and actual wastewater. Overall, the foam composite-based filter marginally outperforms the sand-supported graphene filter and significantly outperforms the unsupported graphene filter. A numerical MATLAB model is developed to simulate the reactive solute transport of GEM influent through the foam filter. Also, a formal sensitivity analysis is conducted to identify the key parameters influencing the model results.

    DOI: 10.1002/adsu.202200016

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  • Rapid and efficient chromium (VI) removal from aqueous solutions using nickel hydroxide nanoplates (nNiHs)

    Maamoun, I; Bensaida, K; Eljamal, R; Falyouna, O; Tanaka, K; Tosco, T; Sugihara, Y; Eljamal, O

    JOURNAL OF MOLECULAR LIQUIDS   358   2022年7月   ISSN:0167-7322 eISSN:1873-3166

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Molecular Liquids  

    Chromium (VI) water contamination still represents a great risk to human health. Consequently, the need for unconventional adsorbents with remarkable sorption abilities is dramatically increasing. Hence, in this study, nickel hydroxide nanoplates (nNiHs) were developed to achieve rapid and significant Cr(VI) removal from aqueous solutions. nNiHs showed an average particle size and crystallite size of 36.8 nm and 8.68 nm, respectively. Different reaction parameters were investigated, including nNiHs dosage, pH, reaction temperature, initial Cr(VI) concentration, and co-existing anions. nNiHs could efficiently remove 20 mg/L Cr(VI) concentration over a wide pH and temperature range(s) (5.0–9.0) and (25–75 °C), respectively. Pseudo 2nd order kinetic model and Freundlich isotherm model were the best to fit experimental data. A maximum Cr(VI) sorption capacity of 71.25 mg/g was achieved at the optimal reaction conditions (pH 5.0, temperature 25 °C, and dosage 2 g/L), comparable to the previously reported values. The governing Cr(VI) removal mechanism by nNiHs involved the high dominance of electrostatic adsorption and the low dominance of co-precipitation. The high sorption potential of the nNiHs and the high affinity of the aqueous Cr(VI) species, enabled the proposed adsorbent to yield an efficient performance in binary environmental systems.

    DOI: 10.1016/j.molliq.2022.119216

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  • <p>Multi-functional magnesium hydroxide coating for iron nanoparticles towards prolonged reactivity in Cr(VI) removal from aqueous solutions</p>

    Ibrahim Maamoun, Omar Falyouna, Ramadan Eljamal, Khaoula Bensaida, Kazuya Tanaka, Tiziana Tosco, Yuji Sugihara, Osama Eljamal

    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING   10 ( 3 )   2022年6月   ISSN:2213-2929 eISSN:2213-3437

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:ELSEVIER SCI LTD  

    In this study, the reactive performance of magnesium hydroxide-coated iron nanoparticles (Fe-0 @Mg(OH)(2)) was investigated for the removal of hexavalent chromium (Cr(VI)) from aqueous solutions. Short-and long-term progressive-release of Fe-0 @Mg(OH)(2) reactivity was evaluated through several batch tests. The Multifunctional effect of the environmentally-friendly Mg(OH)(2) coating shell was represented by the progressive shell-dissolution in water and preventing the rapid corrosion of Fe-0-core, which resulted in a controlled release of Fe0 reactivity towards Cr(VI). Fe-0 @Mg(OH)(2) showed good performance in preserving Fe-0 long-term reactivity within a wide range of pH (3.0 - 9.0) and temperature (15-55 ?). The long-term investigation of Fe-0 @Mg(OH)(2) performance towards Cr(VI) removal confirmed the progressive and maintained reactivity, represented by the continuous release of Fe(0 )electrons, to achieve 100% removal efficiency of 40 mg/L initial Cr(VI) concentration over 50 days reaction time, to be reported for the first time in the literature. Fe-0 @Mg(OH)(2) showed high regeneration abilities up to 5 cycles with 1.36 times average enhancement in Cr(VI) removal efficiency compared to that of Fe-0. Moreover, Fe-0 @Mg(OH)(2 )achieved an increase in the shelf-live longevity performance up to 30 days without any storing solution with 90% final Cr(VI) removal efficiency after 180 min reaction time.

    DOI: 10.1016/j.jece.2022.107431

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  • Multi-functional magnesium hydroxide coating for iron nanoparticles towards prolonged reactivity in Cr(VI) removal from aqueous solutions

    Maamoun, I; Falyouna, O; Eljamal, R; Bensaida, K; Tanaka, K; Tosco, T; Sugihara, Y; Eljamal, O

    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING   10 ( 3 )   2022年6月   ISSN:2213-2929 eISSN:2213-3437

  • Multi-functional magnesium hydroxide coating for iron nanoparticles towards prolonged reactivity in Cr(VI) removal from aqueous solutions

    Maamoun I., Falyouna O., Eljamal R., Bensaida K., Tanaka K., Tosco T., Sugihara Y., Eljamal O.

    Journal of Environmental Chemical Engineering   10 ( 3 )   2022年6月

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    出版者・発行元:Journal of Environmental Chemical Engineering  

    In this study, the reactive performance of magnesium hydroxide-coated iron nanoparticles (Fe @Mg(OH)2) was investigated for the removal of hexavalent chromium (Cr(VI)) from aqueous solutions. Short-and long-term progressive-release of Fe @Mg(OH)2 reactivity was evaluated through several batch tests. The Multi-functional effect of the environmentally-friendly Mg(OH)2 coating shell was represented by the progressive shell-dissolution in water and preventing the rapid corrosion of Fe-core, which resulted in a controlled release of Fe reactivity towards Cr(VI). Fe @Mg(OH)2 showed good performance in preserving Fe long-term reactivity within a wide range of pH (3.0-9.0) and temperature (15-55 oC). The long-term investigation of Fe @Mg(OH)2 performance towards Cr(VI) removal confirmed the progressive and maintained reactivity, represented by the continuous release of Fe electrons, to achieve 100% removal efficiency of 40 mg/L initial Cr(VI) concentration over 50 days reaction time, to be reported for the first time in the literature. Fe @Mg(OH)2 showed high regeneration abilities up to 5 cycles with 1.36 times average enhancement in Cr(VI) removal efficiency compared to that of Fe. Moreover, Fe @Mg(OH)2 achieved an increase in the shelf-live longevity performance up to 30 days without any storing solution with 90% final Cr(VI) removal efficiency after 180 min reaction time.

    DOI: 10.1016/j.jece.2022.107431

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  • A novel method to improve methane generation from waste sludge using iron nanoparticles coated with magnesium hydroxide

    Eljamal, R; Maamoun, I; Bensaida, K; Yilmaz, G; Sugihara, Y; Eljamal, O

    RENEWABLE & SUSTAINABLE ENERGY REVIEWS   158   112192   2022年4月   ISSN:1364-0321 eISSN:1879-0690

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    In response to the low efficiency of the anaerobic digestion (AD) process in generating methane gas, we apply for the first time the use of coated/Fe0 with Mg(OH)2 to enhance the production rate of methane gas from the degradation of waste sludge. A series of batch tests investigated several operations factors followed by a semi-continuous operation system examined the long-term production of methane gas in the presence of the coated/Fe0 were performed. The coating ratio of Mg(OH)2/Fe0 and the dosage of coated/Fe0 were optimized to acquire the highest production rate of methane as 0.5% and 25mg/gVS, respectively. Under these optimum conditions, the methane production increased by 46.6% in the batch tests and 120% in the semi-continuous operation system compared to the control reactor. The results revealed that both Fe0 and Mg(OH)2 did not significantly improve the production of methane when each one was used alone at different dosages, and the improved methane production originated from the synergetic effect of combining these two materials. The crucial role of Mg(OH)2 coating layer was associated with the controlled reactivity release of Fe0, which was indicated by the slow release of Fe2+ and Fe3+ in the bioreactors. Furthermore, the addition of coated/Fe0 stimulated bacterial growth, increased methane content, and maintained the pH within the optimum range in the bioreactors. The dosing time of coated/Fe0 was investigated during the four stages of AD process, and the best dosing time was found in the methanogenic stage (on Day 4). Overall, based on the experimental and predicted methane production, the coated/Fe0 has a great potential for the practical applications of AD.

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  • Insights into boron removal from water using Mg-Al-LDH: Reaction parameters optimization & 3D-RSM modeling

    Eljamal, O; Maamoun, I; Alkhudhayri, S; Eljamal, R; Falyouna, O; Tanaka, K; Kozai, N; Sugihara, Y

    JOURNAL OF WATER PROCESS ENGINEERING   46   2022年4月   ISSN:2214-7144

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Journal of Water Process Engineering  

    In this study, calcined Mg-Al layered double hydroxide (Mg-Al-CLDH) was successfully synthesized for boron (B) removal from aqueous solutions. Batch experiments were conducted considering various reaction conditions, including initial pH, reaction temperature, initial B concentration, Mg-Al-CLDH dosage, ambient condition, and co-existing ions effect, for optimizing B removal efficiency. Results showed that sorption kinetic rate became higher by approaching towards the neutral pH conditions, while it declined at the strong acidic or alkaline conditions. Mg-Al-CLDH was capable of removing high B concentration (80 mg/L) from aqueous solutions at a reasonable dosage of 2 g/L, with a comparable sorption capacity (22.1 mg/g) to other reported studies. Moreover, high B removal rates were observed at high reaction temperatures, reflecting the endothermic nature of the reaction, and reached equilibrium within less than 6 h at temperature of 70 °C. Moreover, results of 3D-RSM modeling confirmed that the middle-high range of Mg-Al-CLDH dosage values was the suitable range to achieve high B removal efficiency, in spite of pH, temperature, and initial concentration effects. Furthermore, isotherm modeling confirmed that B removal by Mg-Al-CLDH occurred via a mono-layer sorption, and thermodynamic modeling revealed the positive value of entropy change, indicating that the randomness of the solid/liquid interaction increased within the adsorption process of B. Spent Mg-Al-CLDH showed great reusability performance by achieving 67%–75% B removal efficiency over three consecutive regeneration cycles, confirming the high potential and applicability of the presented adsorbent in real water treatment applications.

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  • Synthesis of hybrid magnesium hydroxide/magnesium oxide nanorods [Mg (OH)<sub>2</sub>/MgO] for prompt and efficient adsorption of ciprofloxacin from aqueous solutions

    Falyouna, O; Bensaida, K; Maamoun, I; Ashik, UPM; Tahara, A; Tanaka, K; Aoyagi, N; Sugihara, Y; Eljamal, O

    JOURNAL OF CLEANER PRODUCTION   342   130949   2022年3月   ISSN:0959-6526 eISSN:1879-1786

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    The antibiotic ciprofloxacin (CIP) is recognized as a contaminant of emerging concern because its persistent occurrence in water accelerates the growth of deadly antimicrobial resistance genes (AMRs). For the first time, the conventional precipitation technique was thermally modified to produce hybrid magnesium hydroxide/magnesium oxide nanorods [Mg(OH)2/MgO] for efficient and rapid adsorption of CIP from water. The successful synthesis of Mg(OH)2/MgO was confirmed by the outcomes of TEM, EDS, XRD, and FTIR analysis. Mg(OH)2/MgO exhibited an extraordinary capability to adsorb CIP from water regardless of CIP initial concentration where more than 97% of 200 mg L−1 of CIP was promptly eliminated within 30 min by 0.1 g L−1 of Mg(OH)2/MgO under neutral pH and room temperature. These results clearly state that Mg(OH)2/MgO is at least 2-fold efficient and 20-fold faster in removing CIP than the reported nanomaterials with exceptional adsorption capacity higher than 1789 mg g−1. FTIR analysis for the spent Mg(OH)2/MgO revealed that bridging complexation with carboxylic group and electrostatic attraction with the positive amine group are the responsible mechanisms for CIP adsorption by Mg(OH)2/MgO. Moreover, simulated CIP-contaminated river water was efficiently treated by Mg(OH)2/MgO which proves the promising performance of Mg(OH)2/MgO in field scale applications.

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  • Chemical deposition of iron nanoparticles (Fe<SUP>0</SUP>) on titanium nanowires for efficient adsorption of ciprofloxacin from water

    Falyouna, O; Maamoun, I; Bensaida, K; Tahara, A; Sugihara, Y; Eljamal, O

    WATER PRACTICE AND TECHNOLOGY   17 ( 1 )   75 - 83   2022年1月   ISSN:1751231X eISSN:1751-231X

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    出版者・発行元:Water Practice and Technology  

    The development of antimicrobial resistance genes (AMRs) in water was globally accelerated due to the occurrence of ciprofloxacin (CIP) in water. This study aims to precipitate iron nanoparticles (Fe0) on the surface of titanium nanowires (TNWs) through a chemical process to overcome the limitations of Fe0 and efficiently remove CIP from water. TEM and XRD results confirmed the successful synthesis of Fe0 and TNWs. They also proved the successful deposition and dispersion of Fe0 on TNWs. Several (Fe0/TNW) nanocomposites were synthesised with different percentages of TNWs (5, 10, 20, 30, and 50%) to define the best TNWs ratio that will decrease the aggregation of Fe0 nanoparticles and achieve an outstanding removal efficiency of CIP. (Fe0/TNW) nanocomposite with 20% of TNW was nominated as the best nanocomposite because it demonstrated a promising performance, compared with other nanocomposites, by removing more than 67% of CIP with insignificant desorption behaviour during the treatment period (120 min). Dosage of (20%-Fe0/TNW), initial pH of CIP solution and reaction temperature were optimized through a group of batch experiments to efficiently remove CIP from water. The optimum removal of CIP was obtained by 1 g L-1 of (20%-Fe0/TNW) nanocomposite at initial pH of 7 under 35 °C.

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  • Efficient treatment of ammonia-nitrogen contaminated waters by nano zero-valent iron/zeolite composite

    Eljamal, O; Eljamal, R; Maamoun, I; Khalil, AME; Shubair, T; Falyouna, O; Sugihara, Y

    CHEMOSPHERE   287 ( Pt 1 )   131990   2022年1月   ISSN:0045-6535 eISSN:1879-1298

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    記述言語:英語   出版者・発行元:Chemosphere  

    The aim of the present study is developing a magnetic nanoscale zero-valent iron/zeolite (nZVI/Z) composite towards the efficient removal of ammonia-nitrogen (NH4+-N) from aqueous solutions. Series of batch experiments were conducted to investigate the effect of different factors on the removal efficiency, including pH effect, aerobic/anaerobic, NH4+-N initial concentration, and temperature. The mixing mass ratio of nZVI/Z was optimized to reach the optimal ratio (0.25 g nZVI: 0.75 g zeolite), corresponding to the best removal efficiency of 85.7% after 120 min of reaction. Results revealed that nZVI/Z is efficient for NH4+-N removal from water at a wide pH range (3.0–10.0), with superiority to the neutral conditions. Moreover, aerobic ambient and normal temperature of 25 °C were the optimal conditions for the removal process of NH4+-N. Removal mechanisms involved electrostatic attraction, ion exchange, and adsorption. Generally, nZVI/Z has great potential towards the practical applications of NH4+-N removal from water.

    DOI: 10.1016/j.chemosphere.2021.131990

    Web of Science

    Scopus

    PubMed

  • 水溶液からのCr(VI)除去における長期反応性に向けた鉄ナノ粒子のための多機能水酸化マグネシウム被覆【JST・京大機械翻訳】

    Maamoun Ibrahim, Maamoun Ibrahim, Falyouna Omar, Eljamal Ramadan, Eljamal Ramadan, Bensaida Khaoula, Tanaka Kazuya, Tosco Tiziana, Sugihara Yuji, Eljamal Osama

    Journal of Environmental Chemical Engineering   10 ( 3 )   2022年   ISSN:2213-3437 eISSN:2213-3437

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.jece.2022.107431

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  • Degradation of nitrate by modified surface of nano-zero valent iron in flow through permeable reactive barrier: different configurations 査読 国際誌

    Tamer Shubair, Osama Eljamal, Nobuhiro Matsunaga

    International Journal of Advances in Science Engineering and Technology   6 ( 2 )   2321 - 8991   2018年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • GIS-BASED SPATIAL ANALYSIS OF URBAN HEAT ISLAND IN FUKUOKA METROPOLITAN AREA 査読

    Yukun Wang, Akiko Nishimura, Yuji Sugihara, Guoyun Zhou, Yukiko Hisada, Nobuhiro Matsunaga, Osama Eljamal

    63   I_1189 - 1194   2018年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • Product rich in phosphorus produced from phosphorus-contaminated water

    Osama Eljamal, Junya Okawauchi, Kazuaki Hiramatsu

    2014 4th International Conference on Advanced Materials Research, ICAMR 2014 Advanced Materials Research IV   261 - 265   2014年3月

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    記述言語:英語   掲載種別:研究論文(その他学術会議資料等)  

    DOI: 10.4028/www.scientific.net/AMR.894.261

  • Phosphorus sorption from aqueous solution using natural materials 査読

    Osama Eljamal, Junya Okawauchi, Kazuaki Hiramatsu, Harada Masayoshi

    Environmental Earth Sciences   68 ( 3 )   859 - 863   2013年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s12665-012-1789-6

  • Repetitive project modelling with penalty and incentive 査読

    Mohammed Shurrab, Ghaleb Y Abbasi, Osama Eljamal, Jalal T Tanatrah

    International Journal of Operations Research and Information Systems (IJORIS)   9 ( 1 )   1 - 21   2012年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • Numerical simulation for reactive solute transport of arsenic in permeable reactive barrier column including zero-valent iron 査読

    Osama Eljamal, Keiko Sasaki, Tsuyoshi Hirajima

    Applied Mathematical Modelling   35 ( 10 )   5198 - 5207   2011年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/j.apm.2011.04.040

  • Practice of mass transport model application for biogeochemical redox process in aquifer 査読

    Osama Eljamal, EDP Perera, Kenji Jinno

    ISRN Ecology   2011   2011年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • Kinetic Model of Arsenic Sorption onto Zero-Valent Iron (ZVI) 査読

    Osama Eljamal, Keiko Sasaki, Shoichi Tsuruyama, Tsuyoshi Hirajima

    Water Quality, Exposure and Health   2 ( 3-4 )   125 - 132   2011年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Kinetic Model of Arsenic Sorption onto Zero-Valent Iron (ZVI)
    This study investigated the mechanisms involved in removing arsenic from water using zero-valent iron (ZVI) as sorbent. Relatively limited information is available on the kinetics aspects of sorption of arsenic compounds onto ZVI. In order to gain an understanding of the sorption kinetics, a detailed study was conducted in a controlled batch test and developed sorption kinetic model.The effects of different arsenic concentrations on the kinetics sorption rates of arsenic(V) and arsenic(III) were investigated. Arsenic(V) was removed by two mechanisms-surface adsorption and co-precipitation with Fe(III) on ZVI, while arsenic(III) was removed by adsorption on ZVI and oxidized to arsenic(V). Reaction rate constants were calculated for arsenic(V) and arsenic(III) at different concentrations by a second-order kinetic model.The results indicate that ZVI could be employed as sorbent materials to enhance the adsorption and co-precipitation processes to improve the removal rate of arsenic from water. The results also showed that the arsenic(III) oxidized to arsenic(V), while the analyses indicated that there was no measurable reduction of arsenic(V) to arsenic(III).

    DOI: 10.1007/s12403-010-0030-7

  • Modeling of solute transport and biological sulfate reduction using low cost electron donor 査読

    Osama Eljamal, Kenji Jinno, Tosao Hosokawa

    Environmental Geology   56 ( 8 )   1605 - 1613   2009年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Modeling of solute transport and biological sulfate reduction using low cost electron donor
    Serial data from soil-sawdust column experiments were used to develop a mathematical model to describe the biological sulfate reduction processes in porous media. The mathematical model numerically solves the equation of solute transport in one-dimensional saturated state. Solute transport is coupled to sulfate reducing bacteria sub model. Bacterial growth is assumed to follow double Monod kinetic equation. Two bacterial groups (X1 and X2) were described. Bacterial group X1 uses under aerobic conditions oxygen and under anaerobic conditions nitrate as electron acceptor. Under anaerobic conditions bacterial groups X2, use sulfate as an electron acceptor. Sulfate rich wastewater is usually deficient in electron donor and requires external addition of electron donors in order to achieve complete sulfate reduction. The organic carbon as electron donor is one of the most important factors that affect sulfate reduction bacterial activity. In this study the possible source of organic carbon is the solid organic carbon supplied to the system in the form of sawdust. The results of this study indicate that sawdust could be employed as low-cost materials to enhance the biological sulfate reduction processes in porous media. While the availability of organic carbon as electron donor is one of the most important factors that affect the sulfate reducing bacterial activity in porous media, this study demonstrates that using sawdust as a carbon source can improve the bacterial activity and increase the column permeability.

    DOI: 10.1007/s00254-008-1258-4

  • Development of biological treatment model with biological clogging processes in porous media Model application to a column study 査読

    Osama Eljamal, Kenji Jinno, Tosao Hosokawa

    Journal of Groundwater Hydrology   50 ( 4 )   275 - 290   2008年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.5917/jagh1987.50.275

  • Modeling of solute transport with bioremediation processes using sawdust as a matrix 査読

    Osama Eljamal, Kenji Jinno, Tosao Hosokawa

    Water, Air, and Soil Pollution   195 ( 1-4 )   115 - 127   2008年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1007/s11270-008-9731-y

  • A mathematical model of biological clogging of soil-sawdust media 査読

    Osama Eljamal, Kenji Jinno, Tosao Hosokawa

    Journal of Environmental Hydrology   16   1 - 12   2008年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

  • MODELING OF BIOLOGICALLY MEDIATED REDOX PROCESSES USING SAWDUST AS A MATRIX 査読

    Osama Eljamal, Kenji Jinno, Tosao Hosokawa

    PROCEEDINGS OF HYDRAULIC ENGINEERING   51   19 - 24   2007年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.2208/prohe.51.19

  • Denitrification of Secondary Wastewater Using Sawdust 査読

    Osama Eljamal, Kenji Jinno, Tosao Hosokawa

    Memoirs of the Faculty of Engineering, Kyushu University   66 ( 2 )   115 - 128   2006年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

▼全件表示

書籍等出版物

  • Osama Eljamal

    OSAMA ELJAMAL( 担当: 単著)

    Kyushu University  2012年8月 

     詳細を見る

    記述言語:英語   著書種別:学術書

  • Osama Eljamal

    OSAMA ELJAMAL( 担当: 単著)

    Kyushu University  2012年8月 

     詳細を見る

    記述言語:英語   著書種別:学術書

  • Osama Eljamal

    OSAMA ELJAMAL( 担当: 単著)

    2010年8月 

     詳細を見る

    記述言語:英語   著書種別:学術書

講演・口頭発表等

  • Modeling of Phosphorus Retention in Calcium Carbonate Materials; Model Application to Column Experiments 国際会議

    OSAMA ELJAMAL

    5th International SOWAC Seminar of JSPS  2014年8月 

     詳細を見る

    開催年月日: 2014年8月

    記述言語:英語   会議種別:シンポジウム・ワークショップ パネル(公募)  

    国名:日本国  

  • Product Rich in Phosphorus Produced From Phosphorus-Contaminated Water 国際会議

    OSAMA ELJAMAL

    2013 the 2nd International Conference on Material Science and Engineering Technology  2013年11月 

     詳細を見る

    開催年月日: 2013年11月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:グレートブリテン・北アイルランド連合王国(英国)  

  • Soil Column Experiments to Study the Removal of Phosphorus from Water 招待 国際会議

    ELJAMAL OSAMA

    3rd International SOWAC Seminar of JSPS  2013年8月 

     詳細を見る

    開催年月日: 2013年8月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:ベトナム社会主義共和国  

  • Pseudo Model for Phosphate Adsorption from Water onto Different Adsorbents

    ELJAMAL OSAMA

    Japan Geosciences Union Meeting  2013年5月 

     詳細を見る

    開催年月日: 2013年5月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:日本国  

  • An Investigation of Phosphorus Removal from Aqueous Solution Using Byproduct Materials 招待

    ELJAMAL OSAMA

    1st International SOWAC Seminar of JSPS  2012年8月 

     詳細を見る

    開催年月日: 2012年8月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:日本国  

  • Mass transport process and growth of heterotrophic bacteria 国際会議

    ELJAMAL OSAMA

    The XII International Symposium on Environmental Geotechnology, Energy and Global Sustainable Development  2012年6月 

     詳細を見る

    開催年月日: 2012年6月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:アメリカ合衆国  

  • Arsenic Immobilization by Zero Valent Iron: Numerical Modeling and Experimental study

    ELJAMAL OSAMA

    The CINEST International Symposium on Earth Science and Technology  2010年12月 

     詳細を見る

    開催年月日: 2010年12月

    記述言語:英語   会議種別:口頭発表(一般)  

    国名:日本国  

  • Biosorption of Arsenic from Contaminated Water: Composite of Algae and Fe-Nano Particles

    Islam Mir Shariful, Maamoun Ibrahim, Falyouna Omar, Elsayed B. Belal, Eljamal Osama, Bidyut Baran Saha

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語  

    国名:その他  

    Biosorption of Arsenic from Contaminated Water: Composite of Algae and Fe-Nano Particles Arsenic poisoning has been a great concern for the last two decades because of its extensive problems. Coagulation, ion exchange, ultrafiltration, and adsorption systems have been used for the removal of arsenic from polluted water. In this study, the biosorption process was used owing to eco-friendly, simplicity, biodegradable, and cost effectiveness. The uptake of arsenic from contaminated water by Ulva lactuca, Spirulina platensis, Chlorella vulgaris, orange peel, NZVI, zeolite, and composite of NZVI and algae was studied. This study observed that Chlorella vulgaris and iron coated Chlorella vulgaris absorb arsenic more effectively than other algae and iron coated algae. After 24 hours, Chlorella vulgaris and Fe-coated Chlorella vulgaris absorbs 23% and 67% arsenic from contaminated water, respectively. The presented findings depicted the great potential of using bio-sorbents and the Fe-algae bio-composite for the removal of arsenic from contaminated aqueous solutions.

  • Understanding the Effect of Fe(II) and Fe(III) in Generating Electricity from Real Waste Sludge in Microbial Fuel Cells

    Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語  

    国名:その他  

    Understanding the Effect of Fe(II) and Fe(III) in Generating Electricity from Real Waste Sludge in Microbial Fuel Cells Microbial fuel cells (MFCs) are a versatile technology for power generation from biodegradable solid wastes. This study aimed to investigate Fe(II) and Fe(III) effects on MFC's power generation and wastewater treatment performance. All MFCs were operated in a batch mode and incubated at a constant temperature (40 ℃) for 45 days of operation. The experimental procedure went through MFCs construction, collection and characterization of waste sludge samples, and bacterial growth counting. Results showed that the Fe(III) addition exhibited a higher power output by 295 % and a shorter start-up time. The microbial growth increased by 92.18 %, and the anolyte's resistivity decreased with an increase in the organic matter digestion by 52.78 %. However, the amount of power generated in these MFCs was limited by the biological Fe(III) reduction rate high enough to restrict the produced current.

  • Radionuclides Removal from Aqueous Solutions: A Mini Review on Using Different Sorbents

    Maamoun Ibrahim, Eljamal Ramadan, Falyouna Omar, Bensaida Khaoula, Mohd Faizul Idham, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語  

    国名:その他  

    Radionuclides Removal from Aqueous Solutions: A Mini Review on Using Different Sorbents In this study, mini review is presented on the use of different sorbents for radionuclides removal of from water. Four sorbents categories were considered: carbon-based, nanomaterials, bio-sorbents, and miscellaneous sorbents. Carbon-based sorbents showed excellent removal performance towards radionuclides, owing to the high specific surface area and abundant oxygen-containing functional groups. While Fe0 and Fe0-based composites was found to exhibit rapid sorption rate, high removal capacity, and strong redox performance for radionuclides, indicating that such nanomaterials can be very promising for in-situ removal of radionuclides, once their drawbacks (aggregation and poor mobility) are overcome. The use of bio-sorbents showed high potential of such materials to remediate radioactive contaminated water under specific environmental conditions. The critical review in this study shall represent a great contribution to the potential researchers and decision makers choosing the highly efficient, feasible, and environmentally friendly sorbents for the removal of radionuclides from aqueous solutions.

  • Mini Review on Recent Applications of Nanotechnology in Nutrient and Heavy Metals Removal from Contaminated Water

    Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Mohd Faizul Idham, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語  

    国名:その他  

    Mini Review on Recent Applications of Nanotechnology in Nutrient and Heavy Metals Removal from Contaminated Water Several toxic substances, such as nutrients, heavy metals, radionuclides, and pharmaceuticals, are continuously discharging to the environment, as a result of unaccountable industrial and agricultural activities, and contaminating huge quantities of soil and water. Nanotechnology was employed over the past years to remediate the contaminated waters and clean the environment from these pollutants to protect the life on the planet. Nanoscale zerovalent iron (nZVI) is one of the most applied nanomaterials in the field of water and wastewater treatment and it is extensively utilized to remove a wide range of contaminants from water. Thus, this mini review intends to summarize the latest applications of nZVI and its composites in eliminating several nutrients and heavy metals, namely nitrate (NO3-), phosphorous (P), chromium (Cr) and arsenic (As).

  • Investigating the Effect of Commercial and Synthesized Fe^0 particles on Methane Production Through the Anaerobic Digestion of Waste Sludge

    Eljamal Ramadan, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語  

    国名:その他  

    Investigating the Effect of Commercial and Synthesized Fe^0 particles on Methane Production Through the Anaerobic Digestion of Waste Sludge Anaerobic digestion (AD) is a well-established technology that converts organic wastes to produce renewable energy as methane gas. However, the low conversion efficiency of organic matter to methane gas is the main challenge for the practical application of this technology. Therefore, this article aims to demonstrate the effect of the addition of commercial and synthesized Fe0 particles on methane gas production during the AD of waste sludge. Two set of experiments were conducted using two different waste sludges collected at different times from Fukuoka wastewater treatment plant in Japan. Different concentrations of commercial and synthesized iron particles were used in the anaerobic digesters ranged from 1 to 500 mg/L. The results should that the addition of the synthesized/Fe^0 particles to the anaerobic digesters improved methane production by 16% and 5% at using the first and second waste sludge, respectively. On the other hand, the addition of the commercial iron particles did not improve the production of methane gas.

  • Biosorption of Arsenic from Contaminated Water: Composite of Algae and Fe-Nano Particles

    Islam Mir Shariful, Maamoun Ibrahim, Falyouna Omar, Elsayed B. Belal, Eljamal Osama, Bidyut Baran Saha

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語  

    Arsenic poisoning has been a great concern for the last two decades because of its extensive problems. Coagulation, ion exchange, ultrafiltration, and adsorption systems have been used for the removal of arsenic from polluted water. In this study, the biosorption process was used owing to eco-friendly, simplicity, biodegradable, and cost effectiveness. The uptake of arsenic from contaminated water by Ulva lactuca, Spirulina platensis, Chlorella vulgaris, orange peel, NZVI, zeolite, and composite of NZVI and algae was studied. This study observed that Chlorella vulgaris and iron coated Chlorella vulgaris absorb arsenic more effectively than other algae and iron coated algae. After 24 hours, Chlorella vulgaris and Fe-coated Chlorella vulgaris absorbs 23% and 67% arsenic from contaminated water, respectively. The presented findings depicted the great potential of using bio-sorbents and the Fe-algae bio-composite for the removal of arsenic from contaminated aqueous solutions.

    researchmap

  • Understanding the Effect of Fe(II) and Fe(III) in Generating Electricity from Real Waste Sludge in Microbial Fuel Cells

    Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語  

    Microbial fuel cells (MFCs) are a versatile technology for power generation from biodegradable solid wastes. This study aimed to investigate Fe(II) and Fe(III) effects on MFC's power generation and wastewater treatment performance. All MFCs were operated in a batch mode and incubated at a constant temperature (40 ℃) for 45 days of operation. The experimental procedure went through MFCs construction, collection and characterization of waste sludge samples, and bacterial growth counting. Results showed that the Fe(III) addition exhibited a higher power output by 295 % and a shorter start-up time. The microbial growth increased by 92.18 %, and the anolyte's resistivity decreased with an increase in the organic matter digestion by 52.78 %. However, the amount of power generated in these MFCs was limited by the biological Fe(III) reduction rate high enough to restrict the produced current.

    researchmap

  • Radionuclides Removal from Aqueous Solutions: A Mini Review on Using Different Sorbents

    Maamoun Ibrahim, Eljamal Ramadan, Falyouna Omar, Bensaida Khaoula, Mohd Faizul Idham, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語  

    In this study, mini review is presented on the use of different sorbents for radionuclides removal of from water. Four sorbents categories were considered: carbon-based, nanomaterials, bio-sorbents, and miscellaneous sorbents. Carbon-based sorbents showed excellent removal performance towards radionuclides, owing to the high specific surface area and abundant oxygen-containing functional groups. While Fe0 and Fe0-based composites was found to exhibit rapid sorption rate, high removal capacity, and strong redox performance for radionuclides, indicating that such nanomaterials can be very promising for in-situ removal of radionuclides, once their drawbacks (aggregation and poor mobility) are overcome. The use of bio-sorbents showed high potential of such materials to remediate radioactive contaminated water under specific environmental conditions. The critical review in this study shall represent a great contribution to the potential researchers and decision makers choosing the highly efficient, feasible, and environmentally friendly sorbents for the removal of radionuclides from aqueous solutions.

    researchmap

  • Mini Review on Recent Applications of Nanotechnology in Nutrient and Heavy Metals Removal from Contaminated Water

    Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Mohd Faizul Idham, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語  

    Several toxic substances, such as nutrients, heavy metals, radionuclides, and pharmaceuticals, are continuously discharging to the environment, as a result of unaccountable industrial and agricultural activities, and contaminating huge quantities of soil and water. Nanotechnology was employed over the past years to remediate the contaminated waters and clean the environment from these pollutants to protect the life on the planet. Nanoscale zerovalent iron (nZVI) is one of the most applied nanomaterials in the field of water and wastewater treatment and it is extensively utilized to remove a wide range of contaminants from water. Thus, this mini review intends to summarize the latest applications of nZVI and its composites in eliminating several nutrients and heavy metals, namely nitrate (NO3-), phosphorous (P), chromium (Cr) and arsenic (As).

    researchmap

  • Investigating the Effect of Commercial and Synthesized Fe^0 particles on Methane Production Through the Anaerobic Digestion of Waste Sludge

    Eljamal Ramadan, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2021年10月

    記述言語:英語  

    Anaerobic digestion (AD) is a well-established technology that converts organic wastes to produce renewable energy as methane gas. However, the low conversion efficiency of organic matter to methane gas is the main challenge for the practical application of this technology. Therefore, this article aims to demonstrate the effect of the addition of commercial and synthesized Fe0 particles on methane gas production during the AD of waste sludge. Two set of experiments were conducted using two different waste sludges collected at different times from Fukuoka wastewater treatment plant in Japan. Different concentrations of commercial and synthesized iron particles were used in the anaerobic digesters ranged from 1 to 500 mg/L. The results should that the addition of the synthesized/Fe^0 particles to the anaerobic digesters improved methane production by 16% and 5% at using the first and second waste sludge, respectively. On the other hand, the addition of the commercial iron particles did not improve the production of methane gas.

    researchmap

  • A Review on Water Conservation and Consumption Behavior: Leading Issues, Promoting Actions, and Managing the Policies.

    Singha Bipasha, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    国名:その他  

    A Review on Water Conservation and Consumption Behavior: Leading Issues, Promoting Actions, and Managing the Policies. Securing supplies of freshwater is now a big concern for policymakers worldwide. Water saving represents significant pro-environmental behavior for a sustainable water resource. In this paper we present the determinants of conservation and use of household water to establish the relative influence of psychosocial, environmental, and demographic bases. We evaluate the predominant study on the factors influencing excessive water consumption, the various ways in which water agencies can control over-consumption, promote residential water conservation, and claim for the demand-side programs. If we maintain the positive attitude and intention toward conservation, change our daily water use behavior, build the habit to use less water as we can, involve the pro-environmental activities, and if the government properly manage the water demand of every household, this can help to conserve water for our future generation and develop the capability to better implement water conservation agendas that respond to short-term to long term water scarcity crises.

  • The Involvement of Nanoscale Zero Valent Iron during the Anaerobic Digestion of Sludge

    Mokete Relebohile, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    国名:その他  

    The Involvement of Nanoscale Zero Valent Iron during the Anaerobic Digestion of Sludge Increased production of Waste Activated Sludge (WAS) calls for its proper treatment and this can be achieved by biogas production. The aim of this research was to investigate the impact of 1.5g/L NZVI on the generation of bio-methane through the Anaerobic Digestion (AD) process. The results showed that sludge with NZVI (Sg/NZVI) improved the biogas production due to its electron transfer capability. The pH decreased overtime due to the production of Volatile Fatty Acids (VFA) during the AD process, however, the pH of the control decreased more than that of Sg/NVZI because the H+ was consumed during iron corrosion thus resulting in a favorable pH for the methanogens. But with time, the accumulation of VFA and ammonia resulted in the decreased production of biogas.

  • Removal of Ciprofloxacin from Aqueous Solutions by Nanoscale Zerovalent Iron-Based Materials: A Mini Review

    Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    国名:その他  

    Removal of Ciprofloxacin from Aqueous Solutions by Nanoscale Zerovalent Iron-Based Materials: A Mini Review Ciprofloxacin is a fluoroquinolone antibiotic developed to fightback several bacterial diseases. The widespread application in human and animal medicine and the low biodegradation resulted in the persistent detection of ciprofloxacin in many water systems. The occurrence of ciprofloxacin threats human and aquatic life by motivating the development of antimicrobial resistant geneses in water. Microscale (ZVI) and nanoscale zerovalent iron (nZVI) were used to efficiently remove ciprofloxacin from aqueous solutions. The aim of this mini review to summarize: (1) the possible routes for ciprofloxacin to enter the environment, (2) the mechanism of oxidizing organic pollutants by nanoscale zerovalent iron (nZVI), (3) the ways to improve the performance of nZVI and overcome its limitations and finally (4) the available treatment systems in the literature which is developed based on NZVI to remove ciprofloxacin from aqueous environments.

  • Numerical Analysis on Turbulence and Air-Water Scalar Transport in Open-Channel Flow Influenced by Thermal Stratification and Surface Shear Stress

    Kim SungJin, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    国名:その他  

    Numerical Analysis on Turbulence and Air-Water Scalar Transport in Open-Channel Flow Influenced by Thermal Stratification and Surface Shear Stress It is important for estimating accurately the air-water transport of scalar such as heat and gas to understand turbulent characteristics close to the water surface. Near-surface turbulence in natural hydro-environments is influenced by the thermal stratification and the wind shear stress acting on the water surface. The purpose of this study is to numerically investigate how their factors influence the turbulent structure and the air-water scalar transport in an open channel flow by means of the direct numerical simulation, i.e., DNS. We reproduce the combined effects of the thermal stratification and the surface shear stress on the structure of the turbulent flow and the scalar transport on the water surface. The numerical results suggest that the scalar transport velocity is obviously changed by the combined effects of the thermal stratification and the surface shear stress.

  • Innovative Biotechnological Applications of Galdieria Sulphuraria-Red Microalgae (GS-RMA) in Water Treatment Systems

    Maamoun Ibrahim, Bensaida Khaoula, Eljamal Ramadhan, Falyouna Omar, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    国名:その他  

    Innovative Biotechnological Applications of Galdieria Sulphuraria-Red Microalgae (GS-RMA) in Water Treatment Systems In this study, mini review is introduced on the features of the red microalgae (RMA) and its biotechnological potential in different applications. Since it has unique extremophilic features, Galdieria Sulphuraria (GS) is considered to be a perfect microorganism candidate for various biotechnological applications in water treatment systems. Special interest has been oriented towards the applications of GS in water treatment systems, such as nutrients, biological oxygen demand (BOD) and heavy metals (HMs) removal from wastewater. Also, different future prospects have been suggested in terms of the new and innovative applications of GS in water treatment based on the gaps in the literature, including phycoremediation of HMs, bio-resin production, bio-substrate for nanoparticles, and pharmaceuticals removal from wastewater. Finally, the challenges and limitations of employing GS in biotechnological applications have been reviewed, which revealed that using GS has a great potential in largescale outdoor cultivation without becoming contaminated with other microorganisms.

  • Enhancement of Power Generation in Microbial Fuel Cells (Mfcs) Using Iron/Copper Nanoparticles

    Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Ramadhan, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    国名:その他  

    Enhancement of Power Generation in Microbial Fuel Cells (Mfcs) Using Iron/Copper Nanoparticles In this study, a lab-scale microbial fuel cell (MFC) was constructed and power generation output was investigated for 45 days of operation. Nanoscale zerovalent iron (NZVI) and Iron/copper nanoparticles (Cu/NZVI) were added to the anode chamber of the MFC with a concentration of 10 mg/L and their effects were investigated on the MFC performance. Results showed that the maximal power output density values increased by 43.33 % using copper/iron nanoparticles compared to the control MFC. Anode chamber was examined, and results proved that conductivity increased by 13.68% and 23.62% using NZVI and Cu/NZVI, respectively. The chemical oxygen demand COD was tested, and the removal efficiency reached 38.88%, 38.26%, and 52.40% for control, NZVI, and Cu/NZVI MFCs, respectively after 45 days of operation. This study highlights the effect of nanoparticles technology on power generation from activated sludge using microbial fuel cells (MFCs).

  • Comparative Study of Bare and Emulsified Nanoscale Zero-valent Iron for Nitrate and Phosphorus Removal

    Eljamal Ramadan, Maamoun Ibrahim, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    国名:その他  

    Comparative Study of Bare and Emulsified Nanoscale Zero-valent Iron for Nitrate and Phosphorus Removal This work aims to demonstrate the effect of polyethylene sorbitan monolaurate (PSM) on the properties and reactivity of nanoscale zero-valent iron (nZVI). PSM was used in this work to prepare an emulsified nZVI to overcome the particle aggregation phenomenon of nZVI and show the prepared particles with good properties. For that purpose, TEM, XRD and reactivity test of nitrate and phosphorus were performed to show the changes in the performance of nZVI after being emulsified with PSM. The results showed that the emulsified (PSM) greatly improved the removal efficiency of nitrate. Moreover, PSM enhanced the particle dispersion of nZVI and showed the particles with good properties.The results showed that the emulsified nZVI with PSM was also suitable for reduction of nitrate even at a wide range of pH. This study proposed that the emulsified nZVI could have a significant contribution in the aspects of water treatment only for the reducible contaminates.

  • A Review on Water Conservation and Consumption Behavior: Leading Issues, Promoting Actions, and Managing the Policies.

    Singha Bipasha, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    Securing supplies of freshwater is now a big concern for policymakers worldwide. Water saving represents significant pro-environmental behavior for a sustainable water resource. In this paper we present the determinants of conservation and use of household water to establish the relative influence of psychosocial, environmental, and demographic bases. We evaluate the predominant study on the factors influencing excessive water consumption, the various ways in which water agencies can control over-consumption, promote residential water conservation, and claim for the demand-side programs. If we maintain the positive attitude and intention toward conservation, change our daily water use behavior, build the habit to use less water as we can, involve the pro-environmental activities, and if the government properly manage the water demand of every household, this can help to conserve water for our future generation and develop the capability to better implement water conservation agendas that respond to short-term to long term water scarcity crises.

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  • The Involvement of Nanoscale Zero Valent Iron during the Anaerobic Digestion of Sludge

    Mokete Relebohile, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    Increased production of Waste Activated Sludge (WAS) calls for its proper treatment and this can be achieved by biogas production. The aim of this research was to investigate the impact of 1.5g/L NZVI on the generation of bio-methane through the Anaerobic Digestion (AD) process. The results showed that sludge with NZVI (Sg/NZVI) improved the biogas production due to its electron transfer capability. The pH decreased overtime due to the production of Volatile Fatty Acids (VFA) during the AD process, however, the pH of the control decreased more than that of Sg/NVZI because the H+ was consumed during iron corrosion thus resulting in a favorable pH for the methanogens. But with time, the accumulation of VFA and ammonia resulted in the decreased production of biogas.

    researchmap

  • Removal of Ciprofloxacin from Aqueous Solutions by Nanoscale Zerovalent Iron-Based Materials: A Mini Review

    Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    Ciprofloxacin is a fluoroquinolone antibiotic developed to fightback several bacterial diseases. The widespread application in human and animal medicine and the low biodegradation resulted in the persistent detection of ciprofloxacin in many water systems. The occurrence of ciprofloxacin threats human and aquatic life by motivating the development of antimicrobial resistant geneses in water. Microscale (ZVI) and nanoscale zerovalent iron (nZVI) were used to efficiently remove ciprofloxacin from aqueous solutions. The aim of this mini review to summarize: (1) the possible routes for ciprofloxacin to enter the environment, (2) the mechanism of oxidizing organic pollutants by nanoscale zerovalent iron (nZVI), (3) the ways to improve the performance of nZVI and overcome its limitations and finally (4) the available treatment systems in the literature which is developed based on NZVI to remove ciprofloxacin from aqueous environments.

    researchmap

  • Numerical Analysis on Turbulence and Air-Water Scalar Transport in Open-Channel Flow Influenced by Thermal Stratification and Surface Shear Stress

    Kim SungJin, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    It is important for estimating accurately the air-water transport of scalar such as heat and gas to understand turbulent characteristics close to the water surface. Near-surface turbulence in natural hydro-environments is influenced by the thermal stratification and the wind shear stress acting on the water surface. The purpose of this study is to numerically investigate how their factors influence the turbulent structure and the air-water scalar transport in an open channel flow by means of the direct numerical simulation, i.e., DNS. We reproduce the combined effects of the thermal stratification and the surface shear stress on the structure of the turbulent flow and the scalar transport on the water surface. The numerical results suggest that the scalar transport velocity is obviously changed by the combined effects of the thermal stratification and the surface shear stress.

    researchmap

  • Innovative Biotechnological Applications of Galdieria Sulphuraria-Red Microalgae (GS-RMA) in Water Treatment Systems

    Maamoun Ibrahim, Bensaida Khaoula, Eljamal Ramadhan, Falyouna Omar, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    In this study, mini review is introduced on the features of the red microalgae (RMA) and its biotechnological potential in different applications. Since it has unique extremophilic features, Galdieria Sulphuraria (GS) is considered to be a perfect microorganism candidate for various biotechnological applications in water treatment systems. Special interest has been oriented towards the applications of GS in water treatment systems, such as nutrients, biological oxygen demand (BOD) and heavy metals (HMs) removal from wastewater. Also, different future prospects have been suggested in terms of the new and innovative applications of GS in water treatment based on the gaps in the literature, including phycoremediation of HMs, bio-resin production, bio-substrate for nanoparticles, and pharmaceuticals removal from wastewater. Finally, the challenges and limitations of employing GS in biotechnological applications have been reviewed, which revealed that using GS has a great potential in largescale outdoor cultivation without becoming contaminated with other microorganisms.

    researchmap

  • Enhancement of Power Generation in Microbial Fuel Cells (Mfcs) Using Iron/Copper Nanoparticles

    Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Ramadhan, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    In this study, a lab-scale microbial fuel cell (MFC) was constructed and power generation output was investigated for 45 days of operation. Nanoscale zerovalent iron (NZVI) and Iron/copper nanoparticles (Cu/NZVI) were added to the anode chamber of the MFC with a concentration of 10 mg/L and their effects were investigated on the MFC performance. Results showed that the maximal power output density values increased by 43.33 % using copper/iron nanoparticles compared to the control MFC. Anode chamber was examined, and results proved that conductivity increased by 13.68% and 23.62% using NZVI and Cu/NZVI, respectively. The chemical oxygen demand COD was tested, and the removal efficiency reached 38.88%, 38.26%, and 52.40% for control, NZVI, and Cu/NZVI MFCs, respectively after 45 days of operation. This study highlights the effect of nanoparticles technology on power generation from activated sludge using microbial fuel cells (MFCs).

    researchmap

  • Comparative Study of Bare and Emulsified Nanoscale Zero-valent Iron for Nitrate and Phosphorus Removal

    Eljamal Ramadan, Maamoun Ibrahim, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2020年10月

    記述言語:英語  

    This work aims to demonstrate the effect of polyethylene sorbitan monolaurate (PSM) on the properties and reactivity of nanoscale zero-valent iron (nZVI). PSM was used in this work to prepare an emulsified nZVI to overcome the particle aggregation phenomenon of nZVI and show the prepared particles with good properties. For that purpose, TEM, XRD and reactivity test of nitrate and phosphorus were performed to show the changes in the performance of nZVI after being emulsified with PSM. The results showed that the emulsified (PSM) greatly improved the removal efficiency of nitrate. Moreover, PSM enhanced the particle dispersion of nZVI and showed the particles with good properties.The results showed that the emulsified nZVI with PSM was also suitable for reduction of nitrate even at a wide range of pH. This study proposed that the emulsified nZVI could have a significant contribution in the aspects of water treatment only for the reducible contaminates.

    researchmap

  • Deep Learning-Based Image Processing for Whitecaps on the Ocean Surface

    WANG Yukun, SUGIHARA Yuji, ZHAO Xianting, NAKASHIMA Haruki, ELJAMAL Osama

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)  2020年  Japan Society of Civil Engineers

     詳細を見る

    開催年月日: 2020年

    記述言語:英語  

    Whitecaps generated by wave breaking on the ocean surface play an important role in the local interaction across the air-sea interface. Whitecap coverage is defined by the area of whitecaps per the unit ocean surface. It has been recognized as one of the most valuable physical quantities for describing the ocean surface fluxes such as the momentum, heat and carbon dioxide, so that the quantitative evaluation of whitecap coverage becomes significant from viewpoints of coastal and ocean engineering. In this study, a progressive high-precision whitecap extraction model is first built by using the algorithm of deep learning. Compared with a traditional whitecap extraction model based on threshold value, the algorithm is found to solve problems caused by illuminance condition and color change on the ocean surface, and effectively extracts fine whitecaps with complicated structures. Further, through comparisons with previous algorithms such as Automatic Whitecap Extraction (AWE), Iterative Between Class Variance (IBCV) and the whitecap extraction based on fixed threshold value, the present algorithm is demonstrated to be more accurate for identifying whitecaps, and it reduces the amount of evaluation load, and can effectively apply for changeable ocean conditions. The new whitecap extraction technology is used to determine whitecap coverage when shooting digital images under complicated sea surface conditions. Due to the progressive characteristics of this algorithm, it has not only a high precision processing effect on images taken by a fixed camera, but also has the potential to analyze accurately images from a non-fixed camera system, such as an observation ship equipped with camera system, unmanned aerial vehicle and so on.

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    その他リンク: http://id.ndl.go.jp/bib/030805944

  • Experimental Investigation on the Wind-driven Surface Flow Associated with Breaking Waves

    土木学会論文集B2(海岸工学)  2020年  公益社団法人 土木学会

     詳細を見る

    開催年月日: 2020年

    記述言語:英語  

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    その他リンク: http://id.ndl.go.jp/bib/030805947

  • Analogy of iron-copper and iron-silver bimetals during the corrosion process

    Mokete Relebohile, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語  

    国名:その他  

    Analogy of iron-copper and iron-silver bimetals during the corrosion process Because of their strong magnetic properties, the Fe based nanomaterials have successfully been used in order to remediate environmental contamination. The synthesis of the bimetallic nanoparticles was done following chemical reduction of ferric chloride with sodium borohydride then deposition of the respective bimetal. This study was conducted to determine the concentration influence on the dissolution of iron in the presence of the bimetallic nanoparticles along with determining the role of FeCu and FeAg bimetals during iron corrosion. The results showed that the higher the dosage, the higher the iron dissolution due to increased surface area hence reactivity. Also, the bimetals improved the reactivity of iron.

  • Upgrading of Aerobic Sequencing Batch Reactor System with Adding Nanoscale Zero Valent Iron for Wastewater Treatment

    Eljamal Ramadan, Eljamal Osama, Thompson P. Ian, Maamoun Ibrahim, Sugihara Yuji, Yilmaz Gulsum

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語  

    国名:その他  

    Upgrading of Aerobic Sequencing Batch Reactor System with Adding Nanoscale Zero Valent Iron for Wastewater Treatment The aim of this study was to investigate the effect of nano-scale zero-valent iron (nZVI) on the performance of aerobic sequencing batch reactors (SBRs) in terms of COD, phosphate removal and microbial species growth. Two lab scale SBRs were operated simultaneously for sixty days with and without adding nZVI. The reactors were fed with synthetic wastewater and acclimated with seed sludge which was taken from a full-scale municipal wastewater treatment plant in Istanbul. As a result, next generation sequencing technology analysis confirmed that the addition of nZVI in R2 promoted some bacterial types such as Xanthomonadales and inhibited others such as Clostridiales, confirming that the effect of nZVI on the bacterial growth was genera dependent. In addition, the phosphate and COD were completely removed at the end of the study and slightly enhanced with 15 % after the addition of nZVI in R2.

  • Factorial Experimental Design for Optimization of Cesium Removal from Aqueous Solutions

    Rahman Md. Matiar, Karmaker C. Shamal, Pal Animesh, Eljamal Osama, Saha Baran Bidyut

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語  

    国名:その他  

    Factorial Experimental Design for Optimization of Cesium Removal from Aqueous Solutions The effective removal of cesium from aqueous solution is an emerging issue all over the world particularly in Japan after destroyed Daiichi nuclear power plant of Fukushima. To reduce the expended chemicals and reagents in experimental work and number of the experiment, it is required to implement statistical optimization of the factors for the cesium removal process. In this study, factorial experimental design and multivariate regression technique were employed to evaluate the main effects and interactions among the pH, initial concentration and contact time in the cesium removal process using nZVI-Z as an adsorbent. The study revealed that maximum cesium removal occurred at pH level 6, initial concentration of 200 mg/L and contact time of 30 minutes. Initial concentration was the statistically significant factor followed by contact time. Moreover, the significant interaction effect was observed between contact time and initial concentration.

  • Effect of Nano Zero Valent Iron Delivery Method into Porous Media on Phosphorus Removal from Groundwater

    Maamoun Ibrahim, Eljamal Osama, Thompson P. Ian, Eljamal Ramadan, Falyouna Omar, Sugihara Yuji

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語  

    国名:その他  

    Effect of Nano Zero Valent Iron Delivery Method into Porous Media on Phosphorus Removal from Groundwater The main aim of this study is to investigate the effect of the delivery method of nano zero valent iron (NZVI) into porous media on the removal of phosphorus from groundwater. Different column experiments were conducted considering injection and permeable reactive barrier (PRB) approaches using sand-packed column with 65 cm length and 10 cm inner diameter. Results revealed that Injecting 10 g of NZVI into C4 resulted in the highest sorption capacity and average removal efficiency of 25 mg/L phosphorus concentration over 14 days with 197.76 mg-P/g-NZVI and 84.8% respectively. The dissolved oxygen levels in the effluent samples of the NZVI column were declined due to the oxidation process of NZVI, which was accompanied by a lower ORP values. The change of the delivery methodology of NZVI into porous media affected its capacity to remove phosphorus, revealing that injection could be better than PRB in terms of the reactive performance.

  • Effect of Bimetallic Zero Valent Iron Nanoparticles Ag/NZVI on Bacterial Growth

    Bensaida Khaoula, Eljamal Osama, Eljamal Ramadan, Mokete Relebohile, Sugihara Yuji

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月 

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語  

    国名:その他  

    Effect of Bimetallic Zero Valent Iron Nanoparticles Ag/NZVI on Bacterial Growth In this study, a 13-day operation was conducted in order to investigate the effect of Ag-Fe nanoparticles on bacterial growth. To do so, three samples (S1, S2, S3) made of freshly domestic wastewater were treated under anaerobic conditions. S1 was considered as the control batch while 50mg/L of zero valent iron nanoparticles (NZVI) and Ag-Fe bimetallic nanoparticles were added to S2 and S3, respectively. Results showed that the addition of NZVI was effective in activating the bacterial growth. However, Ag-Fe nanoparticles inhibited the bacterial growth. A comparison of the chemical oxygen demand COD of the three samples confirmed the obtained results.

  • Analogy of iron-copper and iron-silver bimetals during the corrosion process

    Mokete Relebohile, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語  

    Because of their strong magnetic properties, the Fe based nanomaterials have successfully been used in order to remediate environmental contamination. The synthesis of the bimetallic nanoparticles was done following chemical reduction of ferric chloride with sodium borohydride then deposition of the respective bimetal. This study was conducted to determine the concentration influence on the dissolution of iron in the presence of the bimetallic nanoparticles along with determining the role of FeCu and FeAg bimetals during iron corrosion. The results showed that the higher the dosage, the higher the iron dissolution due to increased surface area hence reactivity. Also, the bimetals improved the reactivity of iron.

    researchmap

  • Upgrading of Aerobic Sequencing Batch Reactor System with Adding Nanoscale Zero Valent Iron for Wastewater Treatment

    Eljamal Ramadan, Eljamal Osama, Thompson P. Ian, Maamoun Ibrahim, Sugihara Yuji, Yilmaz Gulsum

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語  

    The aim of this study was to investigate the effect of nano-scale zero-valent iron (nZVI) on the performance of aerobic sequencing batch reactors (SBRs) in terms of COD, phosphate removal and microbial species growth. Two lab scale SBRs were operated simultaneously for sixty days with and without adding nZVI. The reactors were fed with synthetic wastewater and acclimated with seed sludge which was taken from a full-scale municipal wastewater treatment plant in Istanbul. As a result, next generation sequencing technology analysis confirmed that the addition of nZVI in R2 promoted some bacterial types such as Xanthomonadales and inhibited others such as Clostridiales, confirming that the effect of nZVI on the bacterial growth was genera dependent. In addition, the phosphate and COD were completely removed at the end of the study and slightly enhanced with 15 % after the addition of nZVI in R2.

    researchmap

  • Factorial Experimental Design for Optimization of Cesium Removal from Aqueous Solutions

    Rahman Md. Matiar, Karmaker C. Shamal, Pal Animesh, Eljamal Osama, Saha Baran Bidyut

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語  

    The effective removal of cesium from aqueous solution is an emerging issue all over the world particularly in Japan after destroyed Daiichi nuclear power plant of Fukushima. To reduce the expended chemicals and reagents in experimental work and number of the experiment, it is required to implement statistical optimization of the factors for the cesium removal process. In this study, factorial experimental design and multivariate regression technique were employed to evaluate the main effects and interactions among the pH, initial concentration and contact time in the cesium removal process using nZVI-Z as an adsorbent. The study revealed that maximum cesium removal occurred at pH level 6, initial concentration of 200 mg/L and contact time of 30 minutes. Initial concentration was the statistically significant factor followed by contact time. Moreover, the significant interaction effect was observed between contact time and initial concentration.

    researchmap

  • Effect of Nano Zero Valent Iron Delivery Method into Porous Media on Phosphorus Removal from Groundwater

    Maamoun Ibrahim, Eljamal Osama, Thompson P. Ian, Eljamal Ramadan, Falyouna Omar, Sugihara Yuji

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語  

    The main aim of this study is to investigate the effect of the delivery method of nano zero valent iron (NZVI) into porous media on the removal of phosphorus from groundwater. Different column experiments were conducted considering injection and permeable reactive barrier (PRB) approaches using sand-packed column with 65 cm length and 10 cm inner diameter. Results revealed that Injecting 10 g of NZVI into C4 resulted in the highest sorption capacity and average removal efficiency of 25 mg/L phosphorus concentration over 14 days with 197.76 mg-P/g-NZVI and 84.8% respectively. The dissolved oxygen levels in the effluent samples of the NZVI column were declined due to the oxidation process of NZVI, which was accompanied by a lower ORP values. The change of the delivery methodology of NZVI into porous media affected its capacity to remove phosphorus, revealing that injection could be better than PRB in terms of the reactive performance.

    researchmap

  • Effect of Bimetallic Zero Valent Iron Nanoparticles Ag/NZVI on Bacterial Growth

    Bensaida Khaoula, Eljamal Osama, Eljamal Ramadan, Mokete Relebohile, Sugihara Yuji

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2019年10月

    記述言語:英語  

    In this study, a 13-day operation was conducted in order to investigate the effect of Ag-Fe nanoparticles on bacterial growth. To do so, three samples (S1, S2, S3) made of freshly domestic wastewater were treated under anaerobic conditions. S1 was considered as the control batch while 50mg/L of zero valent iron nanoparticles (NZVI) and Ag-Fe bimetallic nanoparticles were added to S2 and S3, respectively. Results showed that the addition of NZVI was effective in activating the bacterial growth. However, Ag-Fe nanoparticles inhibited the bacterial growth. A comparison of the chemical oxygen demand COD of the three samples confirmed the obtained results.

    researchmap

  • Enhancement of Nanoscale Zero-Valent Iron Stability in Aqueous Solution Via Metal Hydroxide Coating

    Maamoun Ibrahim, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    国名:その他  

    Enhancement of Nanoscale Zero-Valent Iron Stability in Aqueous Solution Via Metal Hydroxide Coating Concerns have been increased regarding the behavior of nanoscale zero-valent iron (nZVI) in subsurface environmental remediation applications. In this study, the iron particles were coated by magnesium hydroxide (Mg(OH)_2) shell in order to improve their suspension stability in aqueous solutions. Sedimentation tests were conducted for different ratios of the coating material to evaluate the enhancement of particles stability and to determine the optimum coating ratio. Results of sedimentation tests showed that, the coated iron particles Mg(OH)_2-CnZVI exhibited better stability performance than that of bare nZVI (BnZVI). Additionally, optical absorbance results depicted that Mg/Fe coating ratios of 0.8 and 1 showed less aggregation potential than that of the other coating ratios and BnZVI as well. Moreover, beside the enhanced stability, the addition of the nonmagnetic coating layer protected the nZVI core from the rapid corrosion. Further studies should be conducted to investigate the sustainability of the coated nZVI reactivity.

  • Enhancement of the Reduction and Adsorption Mechanism of nZVI using an effective polyacrylamide as a nonionic polymer

    Eljamal Ramadan, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    国名:その他  

    Enhancement of the Reduction and Adsorption Mechanism of nZVI using an effective polyacrylamide as a nonionic polymer Nano Scale Zero Valent Iron (nZVI) has been considered as an effective material for contaminated water cleanup due to the large surface area and its high reducing power. However, due to its high magnetic force, the particles tend to form aggregates resulted in decreasing its high surface area. To overcome the aggregates problem and increase the particle's surface area, polyacrylamide has been used as an effective polymer for synthesizing a stabilized nZVI particles. Comparing with non-stabilized nZVI, the polyacrylamide stabilized nZVI exhibited an excellent performance for both of the nitrate reduction and phosphorus adsorption. Different polyacrylamide dosages varied between 0.2 to 2 (g/L) were investigated, a dose of 0.6 (g/L) was the optimum ratio of polyacrylamide to nZVI to achieve the highest removal efficiency for both of phosphorus and nitrate removal. The polyacrylamide stabilized nZVI improved the nitrate and phosphorus removal efficiency by 43.6 and 21.9% respectively with respect to non-stabilized nZVI.The polyacrylamide was proposed as an effective polymer for enhancing the nZVI particles reactivity to treat the nitrate and phosphorus in the contaminated water.Nano Scale Zero Valent Iron (nZVI) has been considered as an effective material for contaminated water cleanup due to the large surface area and its high reducing power. However, due to its high magnetic force, the particles tend to form aggregates resulted in decreasing its high surface area. To overcome the aggregates problem and increase the particle's surface area, polyacrylamide has been used as an effective polymer for synthesizing a stabilized nZVI particles. Comparing with non-stabilized nZVI, the polyacrylamide stabilized nZVI exhibited an excellent performance for both of the nitrate reduction and phosphorus adsorption. Different polyacrylamide dosages varied between 0.2 to 2 (g/L) were investigated, a dose of 0.6 (g/L) was the optimum ratio of polyacrylamide to nZVI to achieve the highest removal efficiency for both of phosphorus and nitrate removal. The polyacrylamide stabilized nZVI improved the nitrate and phosphorus removal efficiency by 43.6 and 21.9% respectively with respect to non-stabilized nZVI.The polyacrylamide was proposed as an effective polymer for enhancing the nZVI particles reactivity to treat the nitrate and phosphorus in the contaminated water.

  • nZVI@TiO_2 Hetero-interface Activity for NO_3- Removal as Water Remediation Application

    Okasha Sameh, Eljamal Osama, Eljamal Ramadan

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    国名:その他  

    nZVI@TiO_2 Hetero-interface Activity for NO_3- Removal as Water Remediation Application Interface has a synergetic effect in catalytic reactions. Nano particle zero Valent iron (nZVI) is high active (Oxidant, Reductant) of almost contaminants of wastewater such like nitrate through reduction as part of water remediation. nZVI agglomeration lead to severely decreasing in surface area then hence drop in its activity. There were some additives served as anti-agglomeration such like polymers, bi-metals and stabilizers. However, metal oxide nanostructure could prohibit nZVI agglomeration furthermore create an interface with higher activity. TiO_2 as a photocatalytic material has same function after excitation with suitable energy. Electrons play main role for reduction while holes are for oxidation, and hence its efficiency depend on mainly in time recombination of electrons and holes. nZVI@TiO_2 successfully synthesized and demonstrated synergetic reduction removal activity for NO_3-. SEM have been used to analysis new composite structure, furthermore several batch experiments have been performed to suggest reduction possible scenario including future plan.

  • Removal of boron from aqueous solutions using MgAl composition

    Alkhudhayri Sami, Eljamal Osama, Eljamal Ramadan

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    国名:その他  

    Removal of boron from aqueous solutions using MgAl composition Although boron is an element of requirement for the growth of plants, animals and humans, environmental issues and health hazards are related to boron applications in various industries. Recently many techniques have been developed to remove boron from aqueous solutions; adsorption proved to be capable to treat solutions with low boron concentrations. Mg-Al bimetallic compound was synthesized and calcined. Then, was tested in a process to remove boron from aqueous solutions. Difference between calcined and non-calcined Mg-Al bimetallic compounds in removing boron from aqueous solutions were measured to determine whether the calcination process is of significant benefit. Experiments were conducted with variety of pH levels, temperatures dosage volume as well as initial boron concentration; thus finding the most suitable factors in the removing of boron in aqueous solutions using Mg-Al bimetallic compound.

  • Phosphorus Removal by using Nano-scale Iron Materials

    TAKAMI Seiya, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    国名:その他  

    Phosphorus Removal by using Nano-scale Iron Materials Nano-scale Zero Valent Iron (NZVI) was used to remove phosphorus from aqueous solution, and the influence of oxygen and pH were investigated. The higher removal efficiency was obtained from oxic condition. It is because that generated Fe^<2+> and Fe^<3+> will be formed oxide layer on the surface of NZVI which become good adsorbate. And the removal of phosphorus obviously increased when the solution pH was decreased to the acidic side due to the isoelectric point of NZVI. The higher removal efficiency was obtained under oxic and acidic pH condition. According to these results, NZVI was a optimum and useful material for removing phosphorus.

  • Nano-Fe/Cu particles for the remediation of cesium contaminated solutions

    Shubair Tamer, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    国名:その他  

    Nano-Fe/Cu particles for the remediation of cesium contaminated solutions The great East Japan Earthquake in 2011 triggered the Fukushima Daiichi nuclear power plant accident. Large amount of cesium was released into the environment following this severe accident. Therefore, this research work evaluated the applicability of nano-Fe/Cu particles for the removal of cesium from contaminated waters for the first time. Cesium removal was investigated using batch technique with respect to initial cesium concentration, contact time, temperature, pH, competing cations and dosage of nanoparticles. The results showed that nano-Fe/Cu particles demonstrated effective performance for removal of cesium. The removal efficiency exceeded 99% at initial cesium concentration of 1 mg/L and 1 g/L dose. The removal of cesium was largely depending on the solution pH and temperature. The current study proved the potential utility of the nano-Fe/Cu particles as a promising adsorbent for the treatment of waters containing cesium.

  • Inspection of Iron-Copper Bimetal Performance in Chemically Altered Atmosphere

    Mokete Relebohile, Chen Kai, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    国名:その他  

    Inspection of Iron-Copper Bimetal Performance in Chemically Altered Atmosphere The reactivity of Nanoscale Zerovalent Iron (nZVI) can be enhanced by addition of the second metal to increase surface area. In this research, the influence of pH and oxygen supply on Fe-Cu bimetallic nanoparticles' reactivity was investigated. Fe-Cu nanoparticles were synthesized through ferric chloride reduction by sodium borohydride followed by deposition of Cu metal. Iron dissolution was enhanced in acidic pH due to the presence of H+ ions which make the surface to be positively charged whereas in alkaline pH, the OH- ions contribute to the passive layer formation thus limiting further oxidation. Continuous supply led to higher Fe-Cu corrosion as opposed to limited oxygen supply since oxygen enhanced oxidation. The significance of this study is to make deductions in contaminant remediation technologies.

  • Enhancement of Nanoscale Zero-Valent Iron Stability in Aqueous Solution Via Metal Hydroxide Coating

    Maamoun Ibrahim, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    Concerns have been increased regarding the behavior of nanoscale zero-valent iron (nZVI) in subsurface environmental remediation applications. In this study, the iron particles were coated by magnesium hydroxide (Mg(OH)_2) shell in order to improve their suspension stability in aqueous solutions. Sedimentation tests were conducted for different ratios of the coating material to evaluate the enhancement of particles stability and to determine the optimum coating ratio. Results of sedimentation tests showed that, the coated iron particles Mg(OH)_2-CnZVI exhibited better stability performance than that of bare nZVI (BnZVI). Additionally, optical absorbance results depicted that Mg/Fe coating ratios of 0.8 and 1 showed less aggregation potential than that of the other coating ratios and BnZVI as well. Moreover, beside the enhanced stability, the addition of the nonmagnetic coating layer protected the nZVI core from the rapid corrosion. Further studies should be conducted to investigate the sustainability of the coated nZVI reactivity.

    researchmap

  • Removal of boron from aqueous solutions using MgAl composition

    Alkhudhayri Sami, Eljamal Osama, Eljamal Ramadan

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    Although boron is an element of requirement for the growth of plants, animals and humans, environmental issues and health hazards are related to boron applications in various industries. Recently many techniques have been developed to remove boron from aqueous solutions; adsorption proved to be capable to treat solutions with low boron concentrations. Mg-Al bimetallic compound was synthesized and calcined. Then, was tested in a process to remove boron from aqueous solutions. Difference between calcined and non-calcined Mg-Al bimetallic compounds in removing boron from aqueous solutions were measured to determine whether the calcination process is of significant benefit. Experiments were conducted with variety of pH levels, temperatures dosage volume as well as initial boron concentration; thus finding the most suitable factors in the removing of boron in aqueous solutions using Mg-Al bimetallic compound.

    researchmap

  • Phosphorus Removal by using Nano-scale Iron Materials

    TAKAMI Seiya, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    Nano-scale Zero Valent Iron (NZVI) was used to remove phosphorus from aqueous solution, and the influence of oxygen and pH were investigated. The higher removal efficiency was obtained from oxic condition. It is because that generated Fe^<2+> and Fe^<3+> will be formed oxide layer on the surface of NZVI which become good adsorbate. And the removal of phosphorus obviously increased when the solution pH was decreased to the acidic side due to the isoelectric point of NZVI. The higher removal efficiency was obtained under oxic and acidic pH condition. According to these results, NZVI was a optimum and useful material for removing phosphorus.

    researchmap

  • nZVI@TiO_2 Hetero-interface Activity for NO_3- Removal as Water Remediation Application

    Okasha Sameh, Eljamal Osama, Eljamal Ramadan

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    Interface has a synergetic effect in catalytic reactions. Nano particle zero Valent iron (nZVI) is high active (Oxidant, Reductant) of almost contaminants of wastewater such like nitrate through reduction as part of water remediation. nZVI agglomeration lead to severely decreasing in surface area then hence drop in its activity. There were some additives served as anti-agglomeration such like polymers, bi-metals and stabilizers. However, metal oxide nanostructure could prohibit nZVI agglomeration furthermore create an interface with higher activity. TiO_2 as a photocatalytic material has same function after excitation with suitable energy. Electrons play main role for reduction while holes are for oxidation, and hence its efficiency depend on mainly in time recombination of electrons and holes. nZVI@TiO_2 successfully synthesized and demonstrated synergetic reduction removal activity for NO_3-. SEM have been used to analysis new composite structure, furthermore several batch experiments have been performed to suggest reduction possible scenario including future plan.

    researchmap

  • Nano-Fe/Cu particles for the remediation of cesium contaminated solutions

    Shubair Tamer, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    The great East Japan Earthquake in 2011 triggered the Fukushima Daiichi nuclear power plant accident. Large amount of cesium was released into the environment following this severe accident. Therefore, this research work evaluated the applicability of nano-Fe/Cu particles for the removal of cesium from contaminated waters for the first time. Cesium removal was investigated using batch technique with respect to initial cesium concentration, contact time, temperature, pH, competing cations and dosage of nanoparticles. The results showed that nano-Fe/Cu particles demonstrated effective performance for removal of cesium. The removal efficiency exceeded 99% at initial cesium concentration of 1 mg/L and 1 g/L dose. The removal of cesium was largely depending on the solution pH and temperature. The current study proved the potential utility of the nano-Fe/Cu particles as a promising adsorbent for the treatment of waters containing cesium.

    researchmap

  • Inspection of Iron-Copper Bimetal Performance in Chemically Altered Atmosphere

    Mokete Relebohile, Chen Kai, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    The reactivity of Nanoscale Zerovalent Iron (nZVI) can be enhanced by addition of the second metal to increase surface area. In this research, the influence of pH and oxygen supply on Fe-Cu bimetallic nanoparticles' reactivity was investigated. Fe-Cu nanoparticles were synthesized through ferric chloride reduction by sodium borohydride followed by deposition of Cu metal. Iron dissolution was enhanced in acidic pH due to the presence of H+ ions which make the surface to be positively charged whereas in alkaline pH, the OH- ions contribute to the passive layer formation thus limiting further oxidation. Continuous supply led to higher Fe-Cu corrosion as opposed to limited oxygen supply since oxygen enhanced oxidation. The significance of this study is to make deductions in contaminant remediation technologies.

    researchmap

  • Enhancement of the Reduction and Adsorption Mechanism of nZVI using an effective polyacrylamide as a nonionic polymer

    Eljamal Ramadan, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2018年10月

    記述言語:英語  

    Nano Scale Zero Valent Iron (nZVI) has been considered as an effective material for contaminated water cleanup due to the large surface area and its high reducing power. However, due to its high magnetic force, the particles tend to form aggregates resulted in decreasing its high surface area. To overcome the aggregates problem and increase the particle's surface area, polyacrylamide has been used as an effective polymer for synthesizing a stabilized nZVI particles. Comparing with non-stabilized nZVI, the polyacrylamide stabilized nZVI exhibited an excellent performance for both of the nitrate reduction and phosphorus adsorption. Different polyacrylamide dosages varied between 0.2 to 2 (g/L) were investigated, a dose of 0.6 (g/L) was the optimum ratio of polyacrylamide to nZVI to achieve the highest removal efficiency for both of phosphorus and nitrate removal. The polyacrylamide stabilized nZVI improved the nitrate and phosphorus removal efficiency by 43.6 and 21.9% respectively with respect to non-stabilized nZVI.The polyacrylamide was proposed as an effective polymer for enhancing the nZVI particles reactivity to treat the nitrate and phosphorus in the contaminated water.Nano Scale Zero Valent Iron (nZVI) has been considered as an effective material for contaminated water cleanup due to the large surface area and its high reducing power. However, due to its high magnetic force, the particles tend to form aggregates resulted in decreasing its high surface area. To overcome the aggregates problem and increase the particle's surface area, polyacrylamide has been used as an effective polymer for synthesizing a stabilized nZVI particles. Comparing with non-stabilized nZVI, the polyacrylamide stabilized nZVI exhibited an excellent performance for both of the nitrate reduction and phosphorus adsorption. Different polyacrylamide dosages varied between 0.2 to 2 (g/L) were investigated, a dose of 0.6 (g/L) was the optimum ratio of polyacrylamide to nZVI to achieve the highest removal efficiency for both of phosphorus and nitrate removal. The polyacrylamide stabilized nZVI improved the nitrate and phosphorus removal efficiency by 43.6 and 21.9% respectively with respect to non-stabilized nZVI.The polyacrylamide was proposed as an effective polymer for enhancing the nZVI particles reactivity to treat the nitrate and phosphorus in the contaminated water.

    researchmap

  • Evaluation of nanoscale zero valent iron particles for the removal of cesium from aqueous solutions

    Tamer Shubair, Osama Eljamal, Nobuhiro Matsunaga

    INTERNATIONAL CONFERENCE ON MATERIALS ENGINEERING AND SCIENCE  2018年  IOP PUBLISHING LTD

     詳細を見る

    開催年月日: 2018年

    記述言語:英語  

    The great East Japan Earthquake occurred in 2011 and seriously damaged Fukushima Daiichi Nuclear Power Plant. Large amounts of cesium was released into the environment following this accident. Therefore, this study for the first time assessed the applicability of nanosccale zero valent iron (nZVI) for the removal of cesium from aqueous solutions. The removal of cesium was investigated in a batch system with respect to initial cesium concentration, contact time, pH, temperature, competing cations and dosage of nanoparticles. The obtained results showed that nZVI displayed effective performance for removal of cesium. The removal efficiency exceeded 99% at initial cesium concentration of 1 mg/L and 1 g/L dose. The removal of cesium was largely depending on the solution pH and temperature. The current work proved the potential utility of the nZVI in the treatment of cesium contaminated water generated after the Fukushima nuclear accident.

    researchmap

  • Continuous-flow of Nanoscale Zero Valent Iron based system for phosphorus removal

    Takami Seiya, Eljamal Osama, Eljamal Ramadan, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

     詳細を見る

    開催年月日: 2017年10月

    記述言語:英語  

    国名:その他  

    Continuous-flow of Nanoscale Zero Valent Iron based system for phosphorus removal In this study, the removal performance of NZVI for phosphorus under different five condition such as 1) open (with Polishing Unit (1a) and without one (1b)), 2) full aerobic (air flow=1.2L/min. (2a) and 1L/min. (2b)) and 3) full anaerobic conditions (nitrogen flow=3L/min) were analyzed. The initial phosphorus concentration and feeding rate were maintained each approximately 25 mg P/L and 20 ml/min. In each condition, the reactor phosphorus removal rates for initial 3 hours were 77.6 ± 10.2% (1a), 96.3 ± 1.7% (1b), 95.6 ± 1.4% (2a), 95.5 ± 2.3% (2b) and 96.8 ± 2.0% (3). From these results, there are no big differences between them. However, all of the rates decreased to about 50 to 80% after 12 hours. The effluent total iron concentration from the reactor was also analyzed and the correlation with the effluent phosphorus concentration was calculated. As a result, correlation coefficient was R^2=0.963 (2a), R^2=0.897(2b), R^2=0.885(3) respectively, and it was confirmed that there is positive correlation.

  • Potential catalytic effect of ion copper bimetallic nanoparticles on digestion of anaerobic activated sludge at high iron concentrations

    Amen Tareq W.M., Eljamal Osama, Khalil Ahmed M.E., Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

     詳細を見る

    開催年月日: 2017年10月

    記述言語:英語  

    国名:その他  

    Potential catalytic effect of ion copper bimetallic nanoparticles on digestion of anaerobic activated sludge at high iron concentrations Throughout this research, prepared zero valent iron copper nanoparticles (Fe^0/Cu) was used in order to investigate the methane generation and the degradation of anaerobic activated sludge. The prepared Fe^0/Cu in different high concentrations (0.5, 1.5 and 3 g/L) were added to laboratory scale bioreactors to check its biogas generation efficiency compared with blank bioreactor. Furthermore, the organic matter degradation process was also studied by profiling the soluble chemical oxygen demand (SCOD). The results show that the Fe^0/Cu bimetallic particles facilitate the catalytic reactivity by increasing the generated biogas volume and methane yield. The total generated biogas increased by 235.6% for the bioreactors exposed with 1.5 g/L of Fe^0/Cu particles compared with blank. Collectively, results suggest that Fe^0/Cu was promising remediation of domestic activated sludge and consequently Fe^0/Cu system can be proposed as a cost-effective addition for the anaerobic digesters.

  • Nitrate Removal in Porous Media Using Nanoscale Zero Valent Iron: Column Experiment

    Shubair Tamer, Eljamal Osama, Khalil Ahmed, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

     詳細を見る

    開催年月日: 2017年10月

    記述言語:英語  

    国名:その他  

    Nitrate Removal in Porous Media Using Nanoscale Zero Valent Iron: Column Experiment The use of nanoscale zero valent iron (nZVI) as a reactive media in porous media has become a promising technology for contaminants removal from soil and groundwater. Therefore, the main aim of current work is to investigate nitrate removal from water using nZVI in an upflow packed sand column. The effects of one layer, multilayer and different thicknesses of nZVI/sand on nitrate removal were reported in this study. The initial nitrate concentration was 200 mg/L. The distribution of nitrate trapped inside the columns was evaluated by measuring nitrate concentration at various intermediate sampling points along the depth of the column in addition to the column outlet. The results indicated that the best condition to remove nitrate was observed when using single 10-cm high layer of nZVI/sand and more than 97% of influent nitrate was removed.

  • Investigation on Nanoscale Zero Valent Iron interactions in aqueous solution

    Mokete Relebohile, Yifan Hu, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

     詳細を見る

    開催年月日: 2017年10月

    記述言語:英語  

    国名:その他  

    Investigation on Nanoscale Zero Valent Iron interactions in aqueous solution Nanoscale Zero Valent Iron (NZVI) is a waste water treatment approach that is currently gaining attention due to its high efficiency on removal of various water contaminants. To understand its chemical reaction mechanisms, NZVI interactions in aqueous solution free from contaminants were investigated in this study. Several batch experiments were conducted to determine the effect of pH, temperature and dissolved oxygen on ferrous and ferric concentrations. Results showed that the elution of iron ion occurred fast in the first 10 minutes followed by an obvious depletion in concentration due to iron precipitation, and then remained constant. The concentration of ferric was higher than that of ferrous in both oxic and anoxic conditions. Acidic condition enhanced the amount of iron elution because it provided H+ to promote the iron elution reaction forward. The highest temperature of 90℃ condition gave highest iron concentration. However, among lower temperatures, relatively lower temperature gave higher iron concentration. These results are useful for the NZVI application on water treatment in a large scale.

  • Integrating nano-scale zero valent iron (nZVI) in phosphorus removal from aqueous solution through porous media: packed-column experiment

    Maamoun Ibrahim, Eljamal Osama, Shubair Tamer, Noutsuka Hiroki, Saha Bidyut Baran, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

     詳細を見る

    開催年月日: 2017年10月

    記述言語:英語  

    国名:その他  

    Integrating nano-scale zero valent iron (nZVI) in phosphorus removal from aqueous solution through porous media: packed-column experiment

  • Effects of sodium borohydride as a reductant on the synthesis conditions of Nano-scale Zero Valent Iron

    Aljamal Ramadan, Eljamal Osama, Khalil Ahmed, Saha B. B, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

     詳細を見る

    開催年月日: 2017年10月

    記述言語:英語  

    国名:その他  

    Effects of sodium borohydride as a reductant on the synthesis conditions of Nano-scale Zero Valent Iron

  • Continuous-flow of Nanoscale Zero Valent Iron based system for phosphorus removal

    Takami Seiya, Eljamal Osama, Eljamal Ramadan, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2017年10月

    記述言語:英語  

    In this study, the removal performance of NZVI for phosphorus under different five condition such as 1) open (with Polishing Unit (1a) and without one (1b)), 2) full aerobic (air flow=1.2L/min. (2a) and 1L/min. (2b)) and 3) full anaerobic conditions (nitrogen flow=3L/min) were analyzed. The initial phosphorus concentration and feeding rate were maintained each approximately 25 mg P/L and 20 ml/min. In each condition, the reactor phosphorus removal rates for initial 3 hours were 77.6 ± 10.2% (1a), 96.3 ± 1.7% (1b), 95.6 ± 1.4% (2a), 95.5 ± 2.3% (2b) and 96.8 ± 2.0% (3). From these results, there are no big differences between them. However, all of the rates decreased to about 50 to 80% after 12 hours. The effluent total iron concentration from the reactor was also analyzed and the correlation with the effluent phosphorus concentration was calculated. As a result, correlation coefficient was R^2=0.963 (2a), R^2=0.897(2b), R^2=0.885(3) respectively, and it was confirmed that there is positive correlation.

    researchmap

  • Potential catalytic effect of ion copper bimetallic nanoparticles on digestion of anaerobic activated sludge at high iron concentrations

    Amen Tareq W.M., Eljamal Osama, Khalil Ahmed M.E., Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2017年10月

    記述言語:英語  

    Throughout this research, prepared zero valent iron copper nanoparticles (Fe^0/Cu) was used in order to investigate the methane generation and the degradation of anaerobic activated sludge. The prepared Fe^0/Cu in different high concentrations (0.5, 1.5 and 3 g/L) were added to laboratory scale bioreactors to check its biogas generation efficiency compared with blank bioreactor. Furthermore, the organic matter degradation process was also studied by profiling the soluble chemical oxygen demand (SCOD). The results show that the Fe^0/Cu bimetallic particles facilitate the catalytic reactivity by increasing the generated biogas volume and methane yield. The total generated biogas increased by 235.6% for the bioreactors exposed with 1.5 g/L of Fe^0/Cu particles compared with blank. Collectively, results suggest that Fe^0/Cu was promising remediation of domestic activated sludge and consequently Fe^0/Cu system can be proposed as a cost-effective addition for the anaerobic digesters.

    researchmap

  • Nitrate Removal in Porous Media Using Nanoscale Zero Valent Iron: Column Experiment

    Shubair Tamer, Eljamal Osama, Khalil Ahmed, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

     詳細を見る

    開催年月日: 2017年10月

    記述言語:英語  

    The use of nanoscale zero valent iron (nZVI) as a reactive media in porous media has become a promising technology for contaminants removal from soil and groundwater. Therefore, the main aim of current work is to investigate nitrate removal from water using nZVI in an upflow packed sand column. The effects of one layer, multilayer and different thicknesses of nZVI/sand on nitrate removal were reported in this study. The initial nitrate concentration was 200 mg/L. The distribution of nitrate trapped inside the columns was evaluated by measuring nitrate concentration at various intermediate sampling points along the depth of the column in addition to the column outlet. The results indicated that the best condition to remove nitrate was observed when using single 10-cm high layer of nZVI/sand and more than 97% of influent nitrate was removed.

    researchmap

  • Investigation on Nanoscale Zero Valent Iron interactions in aqueous solution

    Mokete Relebohile, Yifan Hu, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

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    開催年月日: 2017年10月

    記述言語:英語  

    Nanoscale Zero Valent Iron (NZVI) is a waste water treatment approach that is currently gaining attention due to its high efficiency on removal of various water contaminants. To understand its chemical reaction mechanisms, NZVI interactions in aqueous solution free from contaminants were investigated in this study. Several batch experiments were conducted to determine the effect of pH, temperature and dissolved oxygen on ferrous and ferric concentrations. Results showed that the elution of iron ion occurred fast in the first 10 minutes followed by an obvious depletion in concentration due to iron precipitation, and then remained constant. The concentration of ferric was higher than that of ferrous in both oxic and anoxic conditions. Acidic condition enhanced the amount of iron elution because it provided H+ to promote the iron elution reaction forward. The highest temperature of 90℃ condition gave highest iron concentration. However, among lower temperatures, relatively lower temperature gave higher iron concentration. These results are useful for the NZVI application on water treatment in a large scale.

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  • Integrating nano-scale zero valent iron (nZVI) in phosphorus removal from aqueous solution through porous media: packed-column experiment

    Maamoun Ibrahim, Eljamal Osama, Shubair Tamer, Noutsuka Hiroki, Saha Bidyut Baran, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

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    開催年月日: 2017年10月

    記述言語:英語  

    This study investigates phosphorus removal from water through nZVI/river-sand packed columns. In order to evaluate their maximum phosphorus adsorption capacity, batch tests were first conducted for a synthesized nZVI (5:3.5 g / 𝐹𝑒𝐶𝑙_3 : 𝑁𝑎𝐵𝐻_4 and river-sand. Aqueous solution of 25 mg/l phosphorus concentration was introduced to three-Plexiglas packed-columns (65 cm length, 10 cm inner diameter and PV=1.53 L with different layers configuration. Solid precipitates of nZVI were characterized using TEM, XRD, BET and LD analyzers. Break-through curves showed that maximum phosphorus removal efficiency was recorded as 98.8% in Column 2 with two layers of nZVI/river-sand after only 17 hours, whereas Column 3 as a control column showed a rapid saturation (fully saturated by day 9 . Dissolved oxygen values were clearly decreased in the first and second columns due to oxygen consumption by nZVI oxidation, unlike Column 3 in which the values were almost close to the influent value. River-sand showed relatively high adsorption capacity of phosphorus as a porous medium.

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  • Effects of sodium borohydride as a reductant on the synthesis conditions of Nano-scale Zero Valent Iron

    Aljamal Ramadan, Eljamal Osama, Khalil Ahmed, Saha B. B, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

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    開催年月日: 2017年10月

    記述言語:英語  

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  • Evaluation of nano zero valent iron effects on fermentation of municipal anaerobic sludge and inducing biogas production

    Tareq W. M. Amen, Osama Eljamal, Ahmed M. E. Khalil, Nobuhiro Matsunaga

    7TH INTERNATIONAL CONFERENCE ON ENVIRONMENT AND INDUSTRIAL INNOVATION  2017年  IOP PUBLISHING LTD

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    開催年月日: 2017年

    記述言語:英語  

    The application of nano size materials on wastewater is going extensive because its high reactivity compared with other materials. As a result, numerous research studies investigated the effectiveness of dosing nano zero valent iron (nZVI) or micro zero valent iron (mZVI) on anaerobic digestion (AD) of sludge and production of biogas as promising renewable energy but inconsistent outcomes have appeared. In this paper, different dosing concentrations of nZVI were applied on anaerobic activated municipal sludge to examine the impact of nZVI on sludge fermentation, biogas generation, and methane (CH4) content stimulation. The results showed that addition 250 mg/L nZVI nanoparticles could enhance 25.23% biogas production and the methane content reached 94.05% after one week of digestion compared with 62.67% without adding iron nanoparticles.

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  • Investigation of Contaminants Interference on Water Treatment by Supported Nanoscale Zero Valent Iron

    Khalil Ahmed M. E., Eljamal Osama, Amen Tareq W.M., Sugihara Yuji, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2016年10月 

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    開催年月日: 2016年10月

    記述言語:英語  

    国名:その他  

    Investigation of Contaminants Interference on Water Treatment by Supported Nanoscale Zero Valent Iron

  • Investigation of Contaminants Interference on Water Treatment by Supported Nanoscale Zero Valent Iron

    Khalil Ahmed M. E., Eljamal Osama, Amen Tareq W.M., Sugihara Yuji, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2016年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

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    開催年月日: 2016年10月

    記述言語:英語  

    Nitrate and phosphate are severe contaminants which cause eutrophication and series environmental problems. The treatment of these pollutants by supported nanoscale zero valent iron (nZVI) on activated charcoal (n-Fe0/C) was suggested as an effective and efficient tool more than unsupported nanoscale Fe0, because of its higher settling rates and improved hydraulic conductivity, the supported nano iron could be applied with easier operation in continuous treatment process of wastewater and in groundwater. In fact, wastewater and groundwater include numerous compounds other than nitrate and phosphate, and they interfere with their remediation process and removal efficiency by supported nano iron. Through this research, n-Fe0/C was synthesized and characterized via transmission electron microscopy (TEM) ), X-ray diffraction (XRD) and Brunauer–Emmett–Teller (BET) surface characterization then applied in batch experiments containing nitrate and nitrate with phosphate coexisting with copper compounds, calcium carbonates, sulfates, humic acid and domestic wastewater. Interference studies were carried out to investigate the extent of influence of each interfering substance. In general, the performance of removal for phosphate remained unchanged (nearly 95%), whereas nitrate decreased from 70% to about 50% in average after 90 min of batch experimental time for almost all interfering substances at high common concentrations except for copper compounds, which increased the removal efficiency that varied from 75 to 100%, depending on phosphate presence and type and amount of copper compound used.

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  • DIFFERENT NANOSCALE ZERO VALENT IRONS FOR NITRATE-POLLUTED WATER REMEDIATION

    Khalil Ahmed M. E., Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2015年10月 

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    開催年月日: 2015年10月

    記述言語:英語  

    国名:その他  

    DIFFERENT NANOSCALE ZERO VALENT IRONS FOR NITRATE-POLLUTED WATER REMEDIATION In this study, four nanoscale zero valent iron (NZVI) types were characterized and compared for nitrate removal from water. Through batch experiments, it was observed that old-purchased iron (OP-NZVI) had very low nitrate removal efficiency (10%) for more than 8 hours. Treated iron (T-NZVI) removed approximately half of nitrate concentration within 3 hours. Synthesized iron (S-NZVI) successfully reduced the whole amount of nitrate in one hour. Meanwhile, the improved iron (I-NZVI) removed the same amount within 20 minutes, which indicated the highest performance among other NZVIs

  • DIFFERENT NANOSCALE ZERO VALENT IRONS FOR NITRATE-POLLUTED WATER REMEDIATION

    Khalil Ahmed M. E., Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2015年10月  Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

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    開催年月日: 2015年10月

    記述言語:英語  

    In this study, four nanoscale zero valent iron (NZVI) types were characterized and compared for nitrate removal from water. Through batch experiments, it was observed that old-purchased iron (OP-NZVI) had very low nitrate removal efficiency (10%) for more than 8 hours. Treated iron (T-NZVI) removed approximately half of nitrate concentration within 3 hours. Synthesized iron (S-NZVI) successfully reduced the whole amount of nitrate in one hour. Meanwhile, the improved iron (I-NZVI) removed the same amount within 20 minutes, which indicated the highest performance among other NZVIs

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  • P-02 Recent Activities of International Education in IGSES at Kyushu University

    Eljamal Osama

    JSEE Annual Conference International Session Proceedings (Web)  2015年  公益社団法人 日本工学教育協会

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    開催年月日: 2015年

    記述言語:英語  

    This paper updates the status of international education in IGSES at Kyushu University and provides future directions for expected international projects. Interdisciplinary Graduate School of Engineering Sciences (IGSES) is part of the Kyushu University (KU), which provides academic and professional programs in a wide range of areas, including material, energy and environment. IGSES was established in 1979 as the nation&#039;s first independent graduate school from undergraduate schools for the interdisciplinary research and education in science and engineering. The current IGSES consists of five departments and plays an important role of advanced research and education in the three main fields, namely, material, energy and environment with the cooperation of Institutes for Materials Chemistry and Engineering (IMCE) as well as Research Institute for Applied Mechanics (RIAM). The paper summarizes an international education in IGSES by describing each of the programs of Intellectual Exchange and Innovation Program (IEI Program), The Advanced Graduate Program in Global Strategy for Green Asia (GA program), CAMPUS Asia program (CA program), Global-30 Master Program (G30 Program) and Super Global University Project (SGU)

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  • P-02 Recent Activities of International Education in IGSES at Kyushu University

    Eljamal Osama

    JSEE Annual Conference International Session Proceedings  2015年  公益社団法人 日本工学教育協会

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    開催年月日: 2015年

    記述言語:英語  

    This paper updates the status of international education in IGSES at Kyushu University and provides future directions for expected international projects. Interdisciplinary Graduate School of Engineering Sciences (IGSES) is part of the Kyushu University (KU), which provides academic and professional programs in a wide range of areas, including material, energy and environment. IGSES was established in 1979 as the nation's first independent graduate school from undergraduate schools for the interdisciplinary research and education in science and engineering. The current IGSES consists of five departments and plays an important role of advanced research and education in the three main fields, namely, material, energy and environment with the cooperation of Institutes for Materials Chemistry and Engineering (IMCE) as well as Research Institute for Applied Mechanics (RIAM). The paper summarizes an international education in IGSES by describing each of the programs of Intellectual Exchange and Innovation Program (IEI Program), The Advanced Graduate Program in Global Strategy for Green Asia (GA program), CAMPUS Asia program (CA program), Global-30 Master Program (G30 Program) and Super Global University Project (SGU)

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  • An Application of Permeable Reactive Barrier Technology for Arsenic Removal from Groundwater Using Zero-Valent Iron: Column Experiment and Numerical Simulation

    ELJAMAL Osama, SASAKI Keiko, HIRAJIMA Tsuyoshi

    資源・素材  2010年 

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    開催年月日: 2010年

    記述言語:英語  

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  • MODELING OF BIOLOGICALLY MEDIATED REDOX PROCESSES USING SAWDUST AS A MATRIX

    ELJAMAL Osama, JINNO Kenji, HOSOKAWA Tosao

    2007年2月 

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    開催年月日: 2007年2月

    記述言語:英語  

    国名:その他  

    MODELING OF BIOLOGICALLY MEDIATED REDOX PROCESSES USING SAWDUST AS A MATRIX A model simulating reactive transport in natural filter using sawdust as materials to improve the efficiency of filter is developed. The transport part of the model computes the changed in concentration over time caused by the processes of advection and dispersion. The kinetic sub model describes the heterotrophic metabolisms of several groups of bacteria. To model a complete redox sequence (aerobic oxidation, denitrification, Mn (IV) -reduction, Fe (III) -reduction and sulfate reduction) four functional bacterial groups (X1, X2, X3 and X4) are defined. The growth and metabolisms are formulated using the Double Monod kinetic equation. The model takes into account the exchange between the different phases (mobile phase, bio phase and matrix phase). The results from a laboratory soil-sawdust columns experiments are used to verify the simulation results of the model. While the availability of organic carbon is one of the most important factors that affects bacterial activity in natural filter. This study demonstrates that using sawdust as a carbon source can improve the biologically mediated redox processes.

  • MODELING OF BIOLOGICALLY MEDIATED REDOX PROCESSES USING SAWDUST AS A MATRIX

    ELJAMAL Osama, JINNO Kenji, HOSOKAWA Tosao

    水工学論文集(CD-ROM)  2007年2月  公益社団法人 土木学会

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    開催年月日: 2007年2月

    記述言語:英語  

    A model simulating reactive transport in natural filter using sawdust as materials to improve the efficiency of filter is developed. The transport part of the model computes the changed in concentration over time caused by the processes of advection and dispersion. The kinetic sub model describes the heterotrophic metabolisms of several groups of bacteria. To model a complete redox sequence (aerobic oxidation, denitrification, Mn (IV) -reduction, Fe (III) -reduction and sulfate reduction) four functional bacterial groups (X1, X2, X3 and X4) are defined. The growth and metabolisms are formulated using the Double Monod kinetic equation. The model takes into account the exchange between the different phases (mobile phase, bio phase and matrix phase). The results from a laboratory soil-sawdust columns experiments are used to verify the simulation results of the model. While the availability of organic carbon is one of the most important factors that affects bacterial activity in natural filter. This study demonstrates that using sawdust as a carbon source can improve the biologically mediated redox processes.

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  • Numerical modeling of nitrate reduction using of low cost organic carbon source

    ELJAMAL Osama, JINNO Kenji

    地下水・土壌汚染とその防止対策に関する研究集会講演集(CD-ROM)  2007年 

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    開催年月日: 2007年

    記述言語:英語  

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  • Enhancement of Nanoscale Zero-Valent Iron Stability in Aqueous Solution Via Metal Hydroxide Coating

    Maamoun Ibrahim, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

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    記述言語:英語  

    国名:日本国  

    Enhancement of Nanoscale Zero-Valent Iron Stability in Aqueous Solution Via Metal Hydroxide Coating Concerns have been increased regarding the behavior of nanoscale zero-valent iron (nZVI) in subsurface environmental remediation applications. In this study, the iron particles were coated by magnesium hydroxide (Mg(OH)_2) shell in order to improve their suspension stability in aqueous solutions. Sedimentation tests were conducted for different ratios of the coating material to evaluate the enhancement of particles stability and to determine the optimum coating ratio. Results of sedimentation tests showed that, the coated iron particles Mg(OH)_2-CnZVI exhibited better stability performance than that of bare nZVI (BnZVI). Additionally, optical absorbance results depicted that Mg/Fe coating ratios of 0.8 and 1 showed less aggregation potential than that of the other coating ratios and BnZVI as well. Moreover, beside the enhanced stability, the addition of the nonmagnetic coating layer protected the nZVI core from the rapid corrosion. Further studies should be conducted to investigate the sustainability of the coated nZVI reactivity.

  • Nanoscale Zero Valent Iron (NZVI)-Based Bimetallic for Water Treatment 招待 国際会議

    International Exchange and Innovation Conference on Engineering & Sciences (IEICES 2018)  2018年10月 

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    記述言語:英語  

    国名:その他  

    Nanoscale Zero Valent Iron (NZVI)-Based Bimetallic for Water Treatment

  • International Postgraduate Program in Japan: Challenges and Opportunities 招待 国際会議

    MECHANICAL ENGINEERING AND SCIENCE POSTGRADUATE INTERNATIONAL CONFERENCE  2018年12月 

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    記述言語:英語  

    国名:その他  

    International Postgraduate Program in Japan: Challenges and Opportunities

  • Upgrading of Aerobic Sequencing Batch Reactor System with Adding Nanoscale Zero Valent Iron for Wastewater Treatment

    Eljamal Ramadan, Eljamal Osama, Thompson P. Ian, Maamoun Ibrahim, Sugihara Yuji, Yilmaz Gulsum

    2019年10月 

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    記述言語:英語  

    国名:日本国  

  • Thermodynamic Effect on Boron Removal from Aqueous Solutions by MgAl Layered Double Hydrotalcite

    Alkhudhayri Sami, Eljamal Osama, Maamoun Ibrahim, Eljamal Ramadan

    2019年10月 

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    記述言語:英語  

    国名:日本国  

  • Factorial Experimental Design for Optimization of Cesium Removal from Aqueous Solutions

    Rahman Md. Matiar, Karmaker C. Shamal, Pal Animesh, Eljamal Osama, Saha Baran Bidyut

    2019年10月 

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    記述言語:英語  

    国名:日本国  

  • Effect of Nano Zero Valent Iron Delivery Method into Porous Media on Phosphorus Removal from Groundwater

    Maamoun Ibrahim, Eljamal Osama, Thompson P. Ian, Eljamal Ramadan, Falyouna Omar, Sugihara Yuji

    2019年10月 

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    記述言語:英語  

    国名:日本国  

  • Effect of Bimetallic Zero Valent Iron Nanoparticles Ag/NZVI on Bacterial Growth

    Bensaida Khaoula, Eljamal Osama, Eljamal Ramadan, Mokete Relebohile, Sugihara Yuji

    2019年10月 

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    記述言語:英語  

    国名:日本国  

  • Analogy of iron-copper and iron-silver bimetals during the corrosion process

    Mokete Relebohile, Eljamal Osama

    2019年10月 

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    記述言語:英語  

    国名:日本国  

  • Upgrading of Aerobic Sequencing Batch Reactor System with Adding Nanoscale Zero Valent Iron for Wastewater Treatment

    Eljamal Ramadan, Eljamal Osama, Thompson P. Ian, Maamoun Ibrahim, Sugihara Yuji, Yilmaz Gulsum

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月 

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    記述言語:英語  

    国名:日本国  

    Upgrading of Aerobic Sequencing Batch Reactor System with Adding Nanoscale Zero Valent Iron for Wastewater Treatment The aim of this study was to investigate the effect of nano-scale zero-valent iron (nZVI) on the performance of aerobic sequencing batch reactors (SBRs) in terms of COD, phosphate removal and microbial species growth. Two lab scale SBRs were operated simultaneously for sixty days with and without adding nZVI. The reactors were fed with synthetic wastewater and acclimated with seed sludge which was taken from a full-scale municipal wastewater treatment plant in Istanbul. As a result, next generation sequencing technology analysis confirmed that the addition of nZVI in R2 promoted some bacterial types such as Xanthomonadales and inhibited others such as Clostridiales, confirming that the effect of nZVI on the bacterial growth was genera dependent. In addition, the phosphate and COD were completely removed at the end of the study and slightly enhanced with 15 % after the addition of nZVI in R2.

  • Factorial Experimental Design for Optimization of Cesium Removal from Aqueous Solutions

    Rahman Md. Matiar, Karmaker C. Shamal, Pal Animesh, Eljamal Osama, Saha Baran Bidyut

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月 

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    記述言語:英語  

    国名:日本国  

    Factorial Experimental Design for Optimization of Cesium Removal from Aqueous Solutions The effective removal of cesium from aqueous solution is an emerging issue all over the world particularly in Japan after destroyed Daiichi nuclear power plant of Fukushima. To reduce the expended chemicals and reagents in experimental work and number of the experiment, it is required to implement statistical optimization of the factors for the cesium removal process. In this study, factorial experimental design and multivariate regression technique were employed to evaluate the main effects and interactions among the pH, initial concentration and contact time in the cesium removal process using nZVI-Z as an adsorbent. The study revealed that maximum cesium removal occurred at pH level 6, initial concentration of 200 mg/L and contact time of 30 minutes. Initial concentration was the statistically significant factor followed by contact time. Moreover, the significant interaction effect was observed between contact time and initial concentration.

  • Effect of Nano Zero Valent Iron Delivery Method into Porous Media on Phosphorus Removal from Groundwater

    Maamoun Ibrahim, Eljamal Osama, Thompson P. Ian, Eljamal Ramadan, Falyouna Omar, Sugihara Yuji

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月 

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    記述言語:英語  

    国名:日本国  

    Effect of Nano Zero Valent Iron Delivery Method into Porous Media on Phosphorus Removal from Groundwater The main aim of this study is to investigate the effect of the delivery method of nano zero valent iron (NZVI) into porous media on the removal of phosphorus from groundwater. Different column experiments were conducted considering injection and permeable reactive barrier (PRB) approaches using sand-packed column with 65 cm length and 10 cm inner diameter. Results revealed that Injecting 10 g of NZVI into C4 resulted in the highest sorption capacity and average removal efficiency of 25 mg/L phosphorus concentration over 14 days with 197.76 mg-P/g-NZVI and 84.8% respectively. The dissolved oxygen levels in the effluent samples of the NZVI column were declined due to the oxidation process of NZVI, which was accompanied by a lower ORP values. The change of the delivery methodology of NZVI into porous media affected its capacity to remove phosphorus, revealing that injection could be better than PRB in terms of the reactive performance.

  • Effect of Bimetallic Zero Valent Iron Nanoparticles Ag/NZVI on Bacterial Growth

    Bensaida Khaoula, Eljamal Osama, Eljamal Ramadan, Mokete Relebohile, Sugihara Yuji

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月 

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    記述言語:英語  

    国名:日本国  

    Effect of Bimetallic Zero Valent Iron Nanoparticles Ag/NZVI on Bacterial Growth In this study, a 13-day operation was conducted in order to investigate the effect of Ag-Fe nanoparticles on bacterial growth. To do so, three samples (S1, S2, S3) made of freshly domestic wastewater were treated under anaerobic conditions. S1 was considered as the control batch while 50mg/L of zero valent iron nanoparticles (NZVI) and Ag-Fe bimetallic nanoparticles were added to S2 and S3, respectively. Results showed that the addition of NZVI was effective in activating the bacterial growth. However, Ag-Fe nanoparticles inhibited the bacterial growth. A comparison of the chemical oxygen demand COD of the three samples confirmed the obtained results.

  • Analogy of iron-copper and iron-silver bimetals during the corrosion process

    Mokete Relebohile, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2019年10月 

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    記述言語:英語  

    国名:日本国  

    Analogy of iron-copper and iron-silver bimetals during the corrosion process Because of their strong magnetic properties, the Fe based nanomaterials have successfully been used in order to remediate environmental contamination. The synthesis of the bimetallic nanoparticles was done following chemical reduction of ferric chloride with sodium borohydride then deposition of the respective bimetal. This study was conducted to determine the concentration influence on the dissolution of iron in the presence of the bimetallic nanoparticles along with determining the role of FeCu and FeAg bimetals during iron corrosion. The results showed that the higher the dosage, the higher the iron dissolution due to increased surface area hence reactivity. Also, the bimetals improved the reactivity of iron.

  • The Involvement of Nanoscale Zero Valent Iron during the Anaerobic Digestion of Sludge

    Mokete Relebohile, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

  • Removal of Ciprofloxacin from Aqueous Solutions by Nanoscale Zerovalent Iron-Based Materials: A Mini Review

    Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

  • Numerical Analysis on Turbulence and Air-Water Scalar Transport in Open-Channel Flow Influenced by Thermal Stratification and Surface Shear Stress

    Kim SungJin, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

  • Innovative Biotechnological Applications of Galdieria Sulphuraria-Red Microalgae (GS-RMA) in Water Treatment Systems

    Maamoun Ibrahim, Bensaida Khaoula, Eljamal Ramadhan, Falyouna Omar, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

  • Enhancement of Power Generation in Microbial Fuel Cells (Mfcs) Using Iron/Copper Nanoparticles

    Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Ramadhan, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

  • Comparative Study of Bare and Emulsified Nanoscale Zero-valent Iron for Nitrate and Phosphorus Removal

    Eljamal Ramadan, Maamoun Ibrahim, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

  • A Review on Water Conservation and Consumption Behavior: Leading Issues, Promoting Actions, and Managing the Policies.

    Singha Bipasha, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

  • The Involvement of Nanoscale Zero Valent Iron during the Anaerobic Digestion of Sludge

    Mokete Relebohile, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

    The Involvement of Nanoscale Zero Valent Iron during the Anaerobic Digestion of Sludge Increased production of Waste Activated Sludge (WAS) calls for its proper treatment and this can be achieved by biogas production. The aim of this research was to investigate the impact of 1.5g/L NZVI on the generation of bio-methane through the Anaerobic Digestion (AD) process. The results showed that sludge with NZVI (Sg/NZVI) improved the biogas production due to its electron transfer capability. The pH decreased overtime due to the production of Volatile Fatty Acids (VFA) during the AD process, however, the pH of the control decreased more than that of Sg/NVZI because the H+ was consumed during iron corrosion thus resulting in a favorable pH for the methanogens. But with time, the accumulation of VFA and ammonia resulted in the decreased production of biogas.

  • Removal of Ciprofloxacin from Aqueous Solutions by Nanoscale Zerovalent Iron-Based Materials: A Mini Review

    Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

    Removal of Ciprofloxacin from Aqueous Solutions by Nanoscale Zerovalent Iron-Based Materials: A Mini Review Ciprofloxacin is a fluoroquinolone antibiotic developed to fightback several bacterial diseases. The widespread application in human and animal medicine and the low biodegradation resulted in the persistent detection of ciprofloxacin in many water systems. The occurrence of ciprofloxacin threats human and aquatic life by motivating the development of antimicrobial resistant geneses in water. Microscale (ZVI) and nanoscale zerovalent iron (nZVI) were used to efficiently remove ciprofloxacin from aqueous solutions. The aim of this mini review to summarize: (1) the possible routes for ciprofloxacin to enter the environment, (2) the mechanism of oxidizing organic pollutants by nanoscale zerovalent iron (nZVI), (3) the ways to improve the performance of nZVI and overcome its limitations and finally (4) the available treatment systems in the literature which is developed based on NZVI to remove ciprofloxacin from aqueous environments.

  • Numerical Analysis on Turbulence and Air-Water Scalar Transport in Open-Channel Flow Influenced by Thermal Stratification and Surface Shear Stress

    Kim SungJin, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

    Numerical Analysis on Turbulence and Air-Water Scalar Transport in Open-Channel Flow Influenced by Thermal Stratification and Surface Shear Stress It is important for estimating accurately the air-water transport of scalar such as heat and gas to understand turbulent characteristics close to the water surface. Near-surface turbulence in natural hydro-environments is influenced by the thermal stratification and the wind shear stress acting on the water surface. The purpose of this study is to numerically investigate how their factors influence the turbulent structure and the air-water scalar transport in an open channel flow by means of the direct numerical simulation, i.e., DNS. We reproduce the combined effects of the thermal stratification and the surface shear stress on the structure of the turbulent flow and the scalar transport on the water surface. The numerical results suggest that the scalar transport velocity is obviously changed by the combined effects of the thermal stratification and the surface shear stress.

  • Innovative Biotechnological Applications of Galdieria Sulphuraria-Red Microalgae (GS-RMA) in Water Treatment Systems

    Maamoun Ibrahim, Bensaida Khaoula, Eljamal Ramadhan, Falyouna Omar, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

    Innovative Biotechnological Applications of Galdieria Sulphuraria-Red Microalgae (GS-RMA) in Water Treatment Systems In this study, mini review is introduced on the features of the red microalgae (RMA) and its biotechnological potential in different applications. Since it has unique extremophilic features, Galdieria Sulphuraria (GS) is considered to be a perfect microorganism candidate for various biotechnological applications in water treatment systems. Special interest has been oriented towards the applications of GS in water treatment systems, such as nutrients, biological oxygen demand (BOD) and heavy metals (HMs) removal from wastewater. Also, different future prospects have been suggested in terms of the new and innovative applications of GS in water treatment based on the gaps in the literature, including phycoremediation of HMs, bio-resin production, bio-substrate for nanoparticles, and pharmaceuticals removal from wastewater. Finally, the challenges and limitations of employing GS in biotechnological applications have been reviewed, which revealed that using GS has a great potential in largescale outdoor cultivation without becoming contaminated with other microorganisms.

  • Enhancement of Power Generation in Microbial Fuel Cells (Mfcs) Using Iron/Copper Nanoparticles

    Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Ramadhan, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

    Enhancement of Power Generation in Microbial Fuel Cells (Mfcs) Using Iron/Copper Nanoparticles In this study, a lab-scale microbial fuel cell (MFC) was constructed and power generation output was investigated for 45 days of operation. Nanoscale zerovalent iron (NZVI) and Iron/copper nanoparticles (Cu/NZVI) were added to the anode chamber of the MFC with a concentration of 10 mg/L and their effects were investigated on the MFC performance. Results showed that the maximal power output density values increased by 43.33 % using copper/iron nanoparticles compared to the control MFC. Anode chamber was examined, and results proved that conductivity increased by 13.68% and 23.62% using NZVI and Cu/NZVI, respectively. The chemical oxygen demand COD was tested, and the removal efficiency reached 38.88%, 38.26%, and 52.40% for control, NZVI, and Cu/NZVI MFCs, respectively after 45 days of operation. This study highlights the effect of nanoparticles technology on power generation from activated sludge using microbial fuel cells (MFCs).

  • Comparative Study of Bare and Emulsified Nanoscale Zero-valent Iron for Nitrate and Phosphorus Removal

    Eljamal Ramadan, Maamoun Ibrahim, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

    Comparative Study of Bare and Emulsified Nanoscale Zero-valent Iron for Nitrate and Phosphorus Removal This work aims to demonstrate the effect of polyethylene sorbitan monolaurate (PSM) on the properties and reactivity of nanoscale zero-valent iron (nZVI). PSM was used in this work to prepare an emulsified nZVI to overcome the particle aggregation phenomenon of nZVI and show the prepared particles with good properties. For that purpose, TEM, XRD and reactivity test of nitrate and phosphorus were performed to show the changes in the performance of nZVI after being emulsified with PSM. The results showed that the emulsified (PSM) greatly improved the removal efficiency of nitrate. Moreover, PSM enhanced the particle dispersion of nZVI and showed the particles with good properties.The results showed that the emulsified nZVI with PSM was also suitable for reduction of nitrate even at a wide range of pH. This study proposed that the emulsified nZVI could have a significant contribution in the aspects of water treatment only for the reducible contaminates.

  • A Review on Water Conservation and Consumption Behavior: Leading Issues, Promoting Actions, and Managing the Policies.

    Singha Bipasha, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2020年10月 

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    記述言語:英語  

    国名:日本国  

    A Review on Water Conservation and Consumption Behavior: Leading Issues, Promoting Actions, and Managing the Policies. Securing supplies of freshwater is now a big concern for policymakers worldwide. Water saving represents significant pro-environmental behavior for a sustainable water resource. In this paper we present the determinants of conservation and use of household water to establish the relative influence of psychosocial, environmental, and demographic bases. We evaluate the predominant study on the factors influencing excessive water consumption, the various ways in which water agencies can control over-consumption, promote residential water conservation, and claim for the demand-side programs. If we maintain the positive attitude and intention toward conservation, change our daily water use behavior, build the habit to use less water as we can, involve the pro-environmental activities, and if the government properly manage the water demand of every household, this can help to conserve water for our future generation and develop the capability to better implement water conservation agendas that respond to short-term to long term water scarcity crises.

  • Understanding the Effect of Fe(II) and Fe(III) in Generating Electricity from Real Waste Sludge in Microbial Fuel Cells

    Bensaida Khaoula, Falyouna Omar, Maamoun Ibrahim, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

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    記述言語:英語  

    国名:日本国  

  • Radionuclides Removal from Aqueous Solutions: A Mini Review on Using Different Sorbents

    Maamoun Ibrahim, Eljamal Ramadan, Falyouna Omar, Bensaida Khaoula, Mohd Faizul Idham, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

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    記述言語:英語  

    国名:日本国  

  • Mini Review on Recent Applications of Nanotechnology in Nutrient and Heavy Metals Removal from Contaminated Water

    Falyouna Omar, Maamoun Ibrahim, Bensaida Khaoula, Mohd Faizul Idham, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

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    記述言語:英語  

    国名:日本国  

  • Investigating the Effect of Commercial and Synthesized Fe^0 particles on Methane Production Through the Anaerobic Digestion of Waste Sludge

    Eljamal Ramadan, Maamoun Ibrahim, Bensaida Khaoula, Sugihara Yuji, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

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    記述言語:英語  

    国名:日本国  

  • Exploring Attitudes and Household Culture to Encourage Water Conservation Behavior

    Singha Bipasha, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

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    記述言語:英語  

    国名:日本国  

  • Effect of Graphene Oxide Synthesis Method on The Adsorption Performance of Pharmaceutical Contaminants

    Mohd Faizul Idham, Falyouna Omar, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

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    記述言語:英語  

    国名:日本国  

  • Biosorption of Arsenic from Contaminated Water: Composite of Algae and Fe-Nano Particles

    Islam Mir Shariful, Maamoun Ibrahim, Falyouna Omar, Elsayed B. Belal, Eljamal Osama, Bidyut Baran Saha

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2021年10月 

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    記述言語:英語  

    国名:日本国  

  • The role of coated nanoscale zero-valent iron with magnesium hydroxide in improving methane production during the anaerobic digestion of waste sludge

    ELjamal Ramadan, Maamoun Ibrahim, Mohd Faizul Idham, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2022年10月 

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    記述言語:英語  

    国名:日本国  

  • Opportunities to exploit stored energy in wastewater

    Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2022年10月 

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    記述言語:英語  

    国名:日本国  

  • Evaluating the Social and Psychological Factors about the Public Acceptance of Treated Wastewater Reuse: A Review

    Singha Bipasha, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2022年10月 

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    記述言語:英語  

    国名:日本国  

  • Effect of water matrix on ligand-assisted adsorption of ciprofloxacin from aqueous solutions by zerovalent iron nanoparticles

    Falyouna Omar, Maamoun Ibrahim, Mohd Faizul Idham, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2022年10月 

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    記述言語:英語  

    国名:日本国  

  • Application of Magnetotelluric Geophysical Technique to Study the Subsurface Structural Setting in Marsa Alam, Eastern Desert, Egypt

    Khalil Ahmed, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2022年10月 

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    記述言語:英語  

    国名:日本国  

  • Antibiotics Removal from Aqueous Environments: A Mini Review on Graphene Oxide-based Nanomaterials Application

    Mohd Faizul Idham, Falyouna Omar, Eljamal Ramadan, Maamoun Ibrahim, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2022年10月 

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    記述言語:英語  

    国名:日本国  

  • A mini-Review on Transportation and Fate of Silver Nanoparticles Released from Consumer Products: Ecological Risk Assessments

    Islam M. Radwan, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2022年10月 

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    記述言語:英語  

    国名:日本国  

  • A study on Zerovalent Iron Nanoparticles, Fe^<2+> and Fe^<3+> enhanced double chamber microbial fuel cells

    Xie Yu, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2023年10月 

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    記述言語:英語  

    国名:日本国  

  • Hydrogen production of anaerobic digestion: A review

    JIANNING DING, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2023年10月 

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    記述言語:英語  

    国名:日本国  

  • Mini review on the application research of nanoscale zero valent iron in water treatment

    Yi Luo, Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2023年10月 

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    記述言語:英語  

    国名:日本国  

  • Enhancement of the Reduction and Adsorption Mechanism of nZVI using an effective polyacrylamide as a nonionic polymer

    Eljamal Ramadan, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

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    記述言語:英語  

    国名:日本国  

    Enhancement of the Reduction and Adsorption Mechanism of nZVI using an effective polyacrylamide as a nonionic polymer Nano Scale Zero Valent Iron (nZVI) has been considered as an effective material for contaminated water cleanup due to the large surface area and its high reducing power. However, due to its high magnetic force, the particles tend to form aggregates resulted in decreasing its high surface area. To overcome the aggregates problem and increase the particle's surface area, polyacrylamide has been used as an effective polymer for synthesizing a stabilized nZVI particles. Comparing with non-stabilized nZVI, the polyacrylamide stabilized nZVI exhibited an excellent performance for both of the nitrate reduction and phosphorus adsorption. Different polyacrylamide dosages varied between 0.2 to 2 (g/L) were investigated, a dose of 0.6 (g/L) was the optimum ratio of polyacrylamide to nZVI to achieve the highest removal efficiency for both of phosphorus and nitrate removal. The polyacrylamide stabilized nZVI improved the nitrate and phosphorus removal efficiency by 43.6 and 21.9% respectively with respect to non-stabilized nZVI.The polyacrylamide was proposed as an effective polymer for enhancing the nZVI particles reactivity to treat the nitrate and phosphorus in the contaminated water.Nano Scale Zero Valent Iron (nZVI) has been considered as an effective material for contaminated water cleanup due to the large surface area and its high reducing power. However, due to its high magnetic force, the particles tend to form aggregates resulted in decreasing its high surface area. To overcome the aggregates problem and increase the particle's surface area, polyacrylamide has been used as an effective polymer for synthesizing a stabilized nZVI particles. Comparing with non-stabilized nZVI, the polyacrylamide stabilized nZVI exhibited an excellent performance for both of the nitrate reduction and phosphorus adsorption. Different polyacrylamide dosages varied between 0.2 to 2 (g/L) were investigated, a dose of 0.6 (g/L) was the optimum ratio of polyacrylamide to nZVI to achieve the highest removal efficiency for both of phosphorus and nitrate removal. The polyacrylamide stabilized nZVI improved the nitrate and phosphorus removal efficiency by 43.6 and 21.9% respectively with respect to non-stabilized nZVI.The polyacrylamide was proposed as an effective polymer for enhancing the nZVI particles reactivity to treat the nitrate and phosphorus in the contaminated water.

  • Recent Activities of International Education in IGSES at Kyushu University 招待 国際会議

    Japanese Society for Engineering Education, 63rd Annual Conference & Exposition  2015年6月 

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    国名:その他  

    Recent Activities of International Education in IGSES at Kyushu University

  • DIFFERENT NANOSCALE ZERO VALENT IRONS FOR NITRATE-POLLUTED WATER REMEDIATION

    Khalil Ahmed M. E., Eljamal Osama, Matsunaga Nobuhiro

    2015年10月 

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    記述言語:英語  

    国名:日本国  

  • DIFFERENT NANOSCALE ZERO VALENT IRONS FOR NITRATE-POLLUTED WATER REMEDIATION

    Khalil Ahmed M. E., Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2015年10月 

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    記述言語:英語  

    国名:日本国  

    DIFFERENT NANOSCALE ZERO VALENT IRONS FOR NITRATE-POLLUTED WATER REMEDIATION In this study, four nanoscale zero valent iron (NZVI) types were characterized and compared for nitrate removal from water. Through batch experiments, it was observed that old-purchased iron (OP-NZVI) had very low nitrate removal efficiency (10%) for more than 8 hours. Treated iron (T-NZVI) removed approximately half of nitrate concentration within 3 hours. Synthesized iron (S-NZVI) successfully reduced the whole amount of nitrate in one hour. Meanwhile, the improved iron (I-NZVI) removed the same amount within 20 minutes, which indicated the highest performance among other NZVIs

  • Investigation of Contaminants Interference on Water Treatment by Supported Nanoscale Zero Valent Iron

    Khalil Ahmed M. E., Eljamal Osama, Amen Tareq W.M., Sugihara Yuji, Matsunaga Nobuhiro

    2016年10月 

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    記述言語:英語  

    国名:日本国  

  • Investigation of Contaminants Interference on Water Treatment by Supported Nanoscale Zero Valent Iron

    Khalil Ahmed M. E., Eljamal Osama, Amen Tareq W.M., Sugihara Yuji, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2016年10月 

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    国名:日本国  

    Investigation of Contaminants Interference on Water Treatment by Supported Nanoscale Zero Valent Iron

  • Potential catalytic effect of ion copper bimetallic nanoparticles on digestion of anaerobic activated sludge at high iron concentrations

    Amen Tareq W.M., Eljamal Osama, Khalil Ahmed M.E., Matsunaga Nobuhiro

    2017年10月 

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    記述言語:英語  

    国名:日本国  

  • Nitrate Removal in Porous Media Using Nanoscale Zero Valent Iron: Column Experiment

    Shubair Tamer, Eljamal Osama, Khalil Ahmed, Matsunaga Nobuhiro

    2017年10月 

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    記述言語:英語  

    国名:日本国  

  • Investigation on Nanoscale Zero Valent Iron interactions in aqueous solution

    Mokete Relebohile, Yifan Hu, Eljamal Osama, Matsunaga Nobuhiro

    2017年10月 

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    記述言語:英語  

    国名:日本国  

  • Integrating nano-scale zero valent iron (nZVI) in phosphorus removal from aqueous solution through porous media: packed-column experiment

    Maamoun Ibrahim, Eljamal Osama, Shubair Tamer, Noutsuka Hiroki, Saha Bidyut Baran, Matsunaga Nobuhiro

    2017年10月 

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    記述言語:英語  

    国名:日本国  

  • Effects of sodium borohydride as a reductant on the synthesis conditions of Nano-scale Zero Valent Iron

    Aljamal Ramadan, Eljamal Osama, Khalil Ahmed, Saha B. B, Matsunaga Nobuhiro

    2017年10月 

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    記述言語:英語  

    国名:日本国  

  • Continuous-flow of Nanoscale Zero Valent Iron based system for phosphorus removal

    Takami Seiya, Eljamal Osama, Eljamal Ramadan, Matsunaga Nobuhiro

    2017年10月 

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    記述言語:英語  

    国名:日本国  

  • Potential catalytic effect of ion copper bimetallic nanoparticles on digestion of anaerobic activated sludge at high iron concentrations

    Amen Tareq W.M., Eljamal Osama, Khalil Ahmed M.E., Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

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    記述言語:英語  

    国名:日本国  

    Potential catalytic effect of ion copper bimetallic nanoparticles on digestion of anaerobic activated sludge at high iron concentrations Throughout this research, prepared zero valent iron copper nanoparticles (Fe^0/Cu) was used in order to investigate the methane generation and the degradation of anaerobic activated sludge. The prepared Fe^0/Cu in different high concentrations (0.5, 1.5 and 3 g/L) were added to laboratory scale bioreactors to check its biogas generation efficiency compared with blank bioreactor. Furthermore, the organic matter degradation process was also studied by profiling the soluble chemical oxygen demand (SCOD). The results show that the Fe^0/Cu bimetallic particles facilitate the catalytic reactivity by increasing the generated biogas volume and methane yield. The total generated biogas increased by 235.6% for the bioreactors exposed with 1.5 g/L of Fe^0/Cu particles compared with blank. Collectively, results suggest that Fe^0/Cu was promising remediation of domestic activated sludge and consequently Fe^0/Cu system can be proposed as a cost-effective addition for the anaerobic digesters.

  • Nitrate Removal in Porous Media Using Nanoscale Zero Valent Iron: Column Experiment

    Shubair Tamer, Eljamal Osama, Khalil Ahmed, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

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    記述言語:英語  

    国名:日本国  

    Nitrate Removal in Porous Media Using Nanoscale Zero Valent Iron: Column Experiment The use of nanoscale zero valent iron (nZVI) as a reactive media in porous media has become a promising technology for contaminants removal from soil and groundwater. Therefore, the main aim of current work is to investigate nitrate removal from water using nZVI in an upflow packed sand column. The effects of one layer, multilayer and different thicknesses of nZVI/sand on nitrate removal were reported in this study. The initial nitrate concentration was 200 mg/L. The distribution of nitrate trapped inside the columns was evaluated by measuring nitrate concentration at various intermediate sampling points along the depth of the column in addition to the column outlet. The results indicated that the best condition to remove nitrate was observed when using single 10-cm high layer of nZVI/sand and more than 97% of influent nitrate was removed.

  • Investigation on Nanoscale Zero Valent Iron interactions in aqueous solution

    Mokete Relebohile, Yifan Hu, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

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    記述言語:英語  

    国名:日本国  

    Investigation on Nanoscale Zero Valent Iron interactions in aqueous solution Nanoscale Zero Valent Iron (NZVI) is a waste water treatment approach that is currently gaining attention due to its high efficiency on removal of various water contaminants. To understand its chemical reaction mechanisms, NZVI interactions in aqueous solution free from contaminants were investigated in this study. Several batch experiments were conducted to determine the effect of pH, temperature and dissolved oxygen on ferrous and ferric concentrations. Results showed that the elution of iron ion occurred fast in the first 10 minutes followed by an obvious depletion in concentration due to iron precipitation, and then remained constant. The concentration of ferric was higher than that of ferrous in both oxic and anoxic conditions. Acidic condition enhanced the amount of iron elution because it provided H+ to promote the iron elution reaction forward. The highest temperature of 90℃ condition gave highest iron concentration. However, among lower temperatures, relatively lower temperature gave higher iron concentration. These results are useful for the NZVI application on water treatment in a large scale.

  • Integrating nano-scale zero valent iron (nZVI) in phosphorus removal from aqueous solution through porous media: packed-column experiment

    Maamoun Ibrahim, Eljamal Osama, Shubair Tamer, Noutsuka Hiroki, Saha Bidyut Baran, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

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    記述言語:英語  

    国名:日本国  

    Integrating nano-scale zero valent iron (nZVI) in phosphorus removal from aqueous solution through porous media: packed-column experiment

  • Effects of sodium borohydride as a reductant on the synthesis conditions of Nano-scale Zero Valent Iron

    Aljamal Ramadan, Eljamal Osama, Khalil Ahmed, Saha B. B, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

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    記述言語:英語  

    国名:日本国  

    Effects of sodium borohydride as a reductant on the synthesis conditions of Nano-scale Zero Valent Iron

  • Continuous-flow of Nanoscale Zero Valent Iron based system for phosphorus removal

    Takami Seiya, Eljamal Osama, Eljamal Ramadan, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2017年10月 

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    記述言語:英語  

    国名:日本国  

    Continuous-flow of Nanoscale Zero Valent Iron based system for phosphorus removal In this study, the removal performance of NZVI for phosphorus under different five condition such as 1) open (with Polishing Unit (1a) and without one (1b)), 2) full aerobic (air flow=1.2L/min. (2a) and 1L/min. (2b)) and 3) full anaerobic conditions (nitrogen flow=3L/min) were analyzed. The initial phosphorus concentration and feeding rate were maintained each approximately 25 mg P/L and 20 ml/min. In each condition, the reactor phosphorus removal rates for initial 3 hours were 77.6 ± 10.2% (1a), 96.3 ± 1.7% (1b), 95.6 ± 1.4% (2a), 95.5 ± 2.3% (2b) and 96.8 ± 2.0% (3). From these results, there are no big differences between them. However, all of the rates decreased to about 50 to 80% after 12 hours. The effluent total iron concentration from the reactor was also analyzed and the correlation with the effluent phosphorus concentration was calculated. As a result, correlation coefficient was R^2=0.963 (2a), R^2=0.897(2b), R^2=0.885(3) respectively, and it was confirmed that there is positive correlation.

  • nZVI@TiO_2 Hetero-interface Activity for NO_3- Removal as Water Remediation Application

    Okasha Sameh, Eljamal Osama, Eljamal Ramadan

    2018年10月 

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    記述言語:英語  

    国名:日本国  

  • Removal of boron from aqueous solutions using MgAl composition

    Alkhudhayri Sami, Eljamal Osama, Eljamal Ramadan

    2018年10月 

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    記述言語:英語  

    国名:日本国  

  • Phosphorus Removal by using Nano-scale Iron Materials

    TAKAMI Seiya, Eljamal Osama, Matsunaga Nobuhiro

    2018年10月 

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    国名:日本国  

  • Nanoscale Zero Valent Iron (NZVI)-Based Bimetallic for Water Treatment

    Eljamal Osama

    2018年10月 

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    記述言語:英語  

    国名:日本国  

  • Nano-Fe/Cu particles for the remediation of cesium contaminated solutions

    Shubair Tamer, Eljamal Osama, Matsunaga Nobuhiro

    2018年10月 

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    記述言語:英語  

    国名:日本国  

  • Inspection of Iron-Copper Bimetal Performance in Chemically Altered Atmosphere

    Mokete Relebohile, Chen Kai, Eljamal Osama, Matsunaga Nobuhiro

    2018年10月 

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    記述言語:英語  

    国名:日本国  

  • Enhancement of the Reduction and Adsorption Mechanism of nZVI using an effective polyacrylamide as a nonionic polymer

    Eljamal Ramadan, Eljamal Osama, Matsunaga Nobuhiro

    2018年10月 

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    記述言語:英語  

    国名:日本国  

  • Enhancement of Nanoscale Zero-Valent Iron Stability in Aqueous Solution Via Metal Hydroxide Coating

    Maamoun Ibrahim, Eljamal Osama, Matsunaga Nobuhiro

    2018年10月 

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    記述言語:英語  

    国名:日本国  

  • nZVI@TiO_2 Hetero-interface Activity for NO_3- Removal as Water Remediation Application

    Okasha Sameh, Eljamal Osama, Eljamal Ramadan

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

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    記述言語:英語  

    国名:日本国  

    nZVI@TiO_2 Hetero-interface Activity for NO_3- Removal as Water Remediation Application Interface has a synergetic effect in catalytic reactions. Nano particle zero Valent iron (nZVI) is high active (Oxidant, Reductant) of almost contaminants of wastewater such like nitrate through reduction as part of water remediation. nZVI agglomeration lead to severely decreasing in surface area then hence drop in its activity. There were some additives served as anti-agglomeration such like polymers, bi-metals and stabilizers. However, metal oxide nanostructure could prohibit nZVI agglomeration furthermore create an interface with higher activity. TiO_2 as a photocatalytic material has same function after excitation with suitable energy. Electrons play main role for reduction while holes are for oxidation, and hence its efficiency depend on mainly in time recombination of electrons and holes. nZVI@TiO_2 successfully synthesized and demonstrated synergetic reduction removal activity for NO_3-. SEM have been used to analysis new composite structure, furthermore several batch experiments have been performed to suggest reduction possible scenario including future plan.

  • Removal of boron from aqueous solutions using MgAl composition

    Alkhudhayri Sami, Eljamal Osama, Eljamal Ramadan

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

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    記述言語:英語  

    国名:日本国  

    Removal of boron from aqueous solutions using MgAl composition Although boron is an element of requirement for the growth of plants, animals and humans, environmental issues and health hazards are related to boron applications in various industries. Recently many techniques have been developed to remove boron from aqueous solutions; adsorption proved to be capable to treat solutions with low boron concentrations. Mg-Al bimetallic compound was synthesized and calcined. Then, was tested in a process to remove boron from aqueous solutions. Difference between calcined and non-calcined Mg-Al bimetallic compounds in removing boron from aqueous solutions were measured to determine whether the calcination process is of significant benefit. Experiments were conducted with variety of pH levels, temperatures dosage volume as well as initial boron concentration; thus finding the most suitable factors in the removing of boron in aqueous solutions using Mg-Al bimetallic compound.

  • Phosphorus Removal by using Nano-scale Iron Materials

    TAKAMI Seiya, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

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    記述言語:英語  

    国名:日本国  

    Phosphorus Removal by using Nano-scale Iron Materials Nano-scale Zero Valent Iron (NZVI) was used to remove phosphorus from aqueous solution, and the influence of oxygen and pH were investigated. The higher removal efficiency was obtained from oxic condition. It is because that generated Fe^<2+> and Fe^<3+> will be formed oxide layer on the surface of NZVI which become good adsorbate. And the removal of phosphorus obviously increased when the solution pH was decreased to the acidic side due to the isoelectric point of NZVI. The higher removal efficiency was obtained under oxic and acidic pH condition. According to these results, NZVI was a optimum and useful material for removing phosphorus.

  • Nanoscale Zero Valent Iron (NZVI)-Based Bimetallic for Water Treatment

    Eljamal Osama

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

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    記述言語:英語  

    国名:日本国  

    Nanoscale Zero Valent Iron (NZVI)-Based Bimetallic for Water Treatment

  • Nano-Fe/Cu particles for the remediation of cesium contaminated solutions

    Shubair Tamer, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

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    記述言語:英語  

    国名:日本国  

    Nano-Fe/Cu particles for the remediation of cesium contaminated solutions The great East Japan Earthquake in 2011 triggered the Fukushima Daiichi nuclear power plant accident. Large amount of cesium was released into the environment following this severe accident. Therefore, this research work evaluated the applicability of nano-Fe/Cu particles for the removal of cesium from contaminated waters for the first time. Cesium removal was investigated using batch technique with respect to initial cesium concentration, contact time, temperature, pH, competing cations and dosage of nanoparticles. The results showed that nano-Fe/Cu particles demonstrated effective performance for removal of cesium. The removal efficiency exceeded 99% at initial cesium concentration of 1 mg/L and 1 g/L dose. The removal of cesium was largely depending on the solution pH and temperature. The current study proved the potential utility of the nano-Fe/Cu particles as a promising adsorbent for the treatment of waters containing cesium.

  • Inspection of Iron-Copper Bimetal Performance in Chemically Altered Atmosphere

    Mokete Relebohile, Chen Kai, Eljamal Osama, Matsunaga Nobuhiro

    Proceedings of International Exchange and Innovation Conference on Engineering & Sciences (IEICES)  2018年10月 

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    記述言語:英語  

    国名:日本国  

    Inspection of Iron-Copper Bimetal Performance in Chemically Altered Atmosphere The reactivity of Nanoscale Zerovalent Iron (nZVI) can be enhanced by addition of the second metal to increase surface area. In this research, the influence of pH and oxygen supply on Fe-Cu bimetallic nanoparticles' reactivity was investigated. Fe-Cu nanoparticles were synthesized through ferric chloride reduction by sodium borohydride followed by deposition of Cu metal. Iron dissolution was enhanced in acidic pH due to the presence of H+ ions which make the surface to be positively charged whereas in alkaline pH, the OH- ions contribute to the passive layer formation thus limiting further oxidation. Continuous supply led to higher Fe-Cu corrosion as opposed to limited oxygen supply since oxygen enhanced oxidation. The significance of this study is to make deductions in contaminant remediation technologies.

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Works(作品等)

  • Coordinator of Infrastructure Projects

    1997年7月

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    Coordinator of Infrastructure Projects

所属学協会

  • International Association for Environmental Hydrology (IAEH)

  • Japan Society of Civil Engineers JSCE

  • Japanese Association of Groundwater Hydrology JAGH

  • International Association for Environmental Hydrology (IAEH)

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  • Japanese Association of Groundwater Hydrology JAGH

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  • Japan Society of Civil Engineers JSCE

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委員歴

  • Kyushu University   Chair of Annual International Exchange and Innovation Conference on Engineering & Sciences  

    2015年4月 - 現在   

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    団体区分:政府

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  • Kyushu University   member of International Future Conceptual Center (IFCC)  

    2014年4月 - 現在   

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    団体区分:政府

    researchmap

  • Kyushu University   member of Ph.D. Course of Intellectual Exchange and Innovation (IEI) Program  

    2014年4月 - 現在   

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    団体区分:学協会

    researchmap

  • Kyushu University   member of Master-Ph.D. Course of Advanced Graduate Program in Global Strategy for Green Asia  

    2014年4月 - 現在   

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    団体区分:政府

    researchmap

学術貢献活動

  • 学術論文等の審査

    役割:査読

    2024年

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    種別:査読等 

    外国語雑誌 査読論文数:20

    国際会議録 査読論文数:10

  • 学術論文等の審査

    役割:査読

    2023年

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    種別:査読等 

    外国語雑誌 査読論文数:30

    国際会議録 査読論文数:20

  • 学術論文等の審査

    役割:査読

    2022年

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    種別:査読等 

    外国語雑誌 査読論文数:50

    国際会議録 査読論文数:50

共同研究・競争的資金等の研究課題

  • 大気海洋界面の波浪・乱流・化学作用に着目した海洋二酸化炭素吸収機能の解明

    研究課題/領域番号:23K26211  2023年4月 - 2027年3月

    科学研究費助成事業  基盤研究(B)

    杉原 裕司, 山上 路生, 高垣 直尚, Eljamal Osama, 岡本 隆明, 山口 創一

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    資金種別:科研費

    本研究では、大気海洋界面における波浪・乱流・化学作用の解明と海洋の二酸化炭素吸収機能の定量的評価を通して、海上風速以外の因子が海洋の二酸化炭素吸収機能に及ぼす影響を明らかにする。先進的な実験研究を通して、多様な風速・吹送距離・乱流状態における大気海洋界面の波浪・乱流作用を解明する。また、界面活性物質を付加した実験研究に基づいて、界面の化学的作用が物質輸送に及ぼす影響について検討する。さらに、数値海洋生態系モデルによる炭素循環の数値実験を行い、界面の波浪・乱流・化学作用が海洋の二酸化炭素吸収機能に果たす効果を評価する。

    CiNii Research

  • 大気海洋界面の波浪・乱流・化学作用に着目した海洋二酸化炭素吸収機能の解明

    研究課題/領域番号:23H01517  2023年 - 2026年

    日本学術振興会  科学研究費助成事業  基盤研究(B)

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    担当区分:研究分担者  資金種別:科研費

  • Innovative Nano-biotechnology for Hydrogen and Methane Co-Production with Zero CO2 Emission through a Novel Design of Three-Stage Continuous Flow Anaerobic Digestion System

    研究課題/領域番号:21K12311  2021年4月 - 2024年3月

    科学研究費助成事業  基盤研究(C)

    Eljamal Osama

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    資金種別:科研費

    we are going to design and optimize a three-stage continuous flow AD system which will be enhanced by bimetallic nanoparticles. To the best of our knowledge, this system with the new design and bimetallic nanoparticles addition has not yet been operated or optimized.

    CiNii Research

  • Adsorptive removal of emerging pharmaceuticals and personal care products from contaminated water bodies via the application of iron-based nanoparticles and nanocomposites

    2019年4月 - 2025年3月

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    担当区分:研究代表者 

  • 大気-海洋間の運動量・ガス交換機構の統合的モデル化とその地球環境工学的応用

    研究課題/領域番号:19H02249  2019年4月 - 2023年3月

    科学研究費助成事業  基盤研究(B)

    杉原 裕司, 山上 路生, 高垣 直尚, Eljamal Osama

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    資金種別:科研費

    種々のスケールの精緻な風洞水槽実験を通して,風波界面の運動量・ガス交換機構を波浪・砕波・乱流の力学的視座から統合的にモデル化する研究を行う.風波界面の遷移,吹送流,砕波,乱流強化の機構を低風速から超高風速レンジにわたって系統的に調べ,海面抵抗係数およびガス交換速度の波浪・砕波依存性を定量的に評価する.これらの結果に基づいて,波浪・砕波・乱流の統合的描像に基づく海面抵抗係数とCO2交換速度の数理モデルを構築する.さらに,得られたモデルを大気-波浪結合計算に実装して地球温暖化予測における波浪・砕波影響の定量的解明を試みる.

    CiNii Research

  • Improving the characteristics of iron nanoparticles via non-magnetic coating

    2018年4月 - 2025年3月

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    担当区分:研究代表者 

  • Utilizing Nanotechnology in Microbial Fuel Cells for Power Generation from Wastewater Sludge

    2018年4月 - 2025年3月

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    担当区分:研究代表者 

  • Visiting the University of Oxford

    2018年 - 2019年

    GLOBAL LEADERSHIP TRAINING FOR YOUNG RESEARCHERS

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    担当区分:研究代表者  資金種別:学内資金・基金等

  • An Integrated multiscale Optimization‐Based Decision Support System for Urban and Industrial Water Resources Management 国際共著

    2017年10月 - 2021年9月

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    担当区分:連携研究者 

    Develop a coordinated data collection and management system for water supply and consumption to ensure reliable, relevant, actionable sustainable water policies and strategies.

  • Improvements of methane generation from wastewater activated sludge

    2017年4月 - 2025年3月

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    担当区分:研究代表者 

  • Energy generation from solid waste, waste-activated sludge and wastewater

    2015年4月 - 2022年3月

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    担当区分:研究代表者 

    Develop Novel Methods for Wastewater Treatment, Waste Activated Sludge and Biogas production Using metal Nanoparticles

  • Develop Novel Methods for Environmental Remediation and Water Treatment

    2014年4月 - 2022年3月

    Japan 

      詳細を見る

    担当区分:研究代表者 

    Develop novel nanotechnology-based methods for environmental remediation and water treatment

  • Collaborative Project for Soil and Water Conservation in Southeast Asian Watersheds

    2012年 - 2013年

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (S)

      詳細を見る

    担当区分:研究分担者  資金種別:科研費

  • 微生物処理による地下水浄化のための透過型浄化壁におけるヒ素の輸送モデル

    研究課題/領域番号:09F09093  2009年 - 2010年

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

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    担当区分:研究分担者  資金種別:科研費

▼全件表示

教育活動概要

  • 私は現在、以下のように九州大学で学部および大学院レベルのいくつかのコースを教え、貢献しているか、教えています。
    大学院レベルのコース
    環境工学、環境流体力学セミナー、水資源管理、環境システムモデリング、数値解法技術、都市部の気象・水循環、排水処理、会議の設計と組織化、英語によるコミュニケーションスキル、博士論文演習、ディスカッション・リーディング、 組織化、学際的工学基礎、材料、エネルギー、環境
    学部レベルのコース
    高度なエンジニアリング 数学、MATLAB によるプログラミングと問題解決、情報処理と実践、テクニカル コミュニケーション、物理実験室と環境実験室、水力工学、給水システム、水道ネットワーク設計

担当授業科目

  • 水資源環境工学

    2024年10月 - 2024年12月   秋学期

  • 国際会議企画・組織・運営実習

    2024年4月 - 2025年3月   通年

  • 水資源環境工学

    2023年10月 - 2023年12月   秋学期

  • 水資源環境工学

    2023年10月 - 2023年12月   秋学期

  • 国際会議企画・組織・運営実習

    2023年4月 - 2024年3月   通年

  • 国際会議企画・組織・運営実習

    2023年4月 - 2024年3月   通年

  • 総合理工学修士実験

    2023年4月 - 2024年3月   通年

  • 総合理工学修士演習

    2023年4月 - 2024年3月   通年

  • 総合理工学修士実験

    2023年4月 - 2024年3月   通年

  • 総合理工学修士演習

    2023年4月 - 2024年3月   通年

  • Doctoral research

    2023年4月 - 2024年3月   通年

  • Exercise for doctoral thesis

    2023年4月 - 2024年3月   通年

  • Advanced topics of Energy, Environment and Materials II

    2023年4月 - 2023年9月   前期

  • 水資源環境工学

    2022年10月 - 2022年12月   秋学期

  • 水資源環境工学

    2022年10月 - 2022年12月   秋学期

  • 水資源環境工学

    2022年10月 - 2022年12月   秋学期

  • 国際会議企画・組織・運営実習

    2022年4月 - 2023年3月   通年

  • 総合理工学修士実験

    2022年4月 - 2023年3月   通年

  • 総合理工学修士演習

    2022年4月 - 2023年3月   通年

  • 国際会議企画・組織・運営実習

    2022年4月 - 2023年3月   通年

  • 総合理工学修士実験

    2022年4月 - 2023年3月   通年

  • 総合理工学修士演習

    2022年4月 - 2023年3月   通年

  • 国際会議企画・組織・運営実習

    2022年4月 - 2023年3月   通年

  • 総合理工学修士実験

    2022年4月 - 2023年3月   通年

  • 総合理工学修士演習

    2022年4月 - 2023年3月   通年

  • Water Resources and Environmental Engineering

    2021年10月 - 2022年3月   後期

  • エネルギー・環境・材料特論Ⅱ

    2021年10月 - 2022年3月   後期

  • エネルギー・環境・材料特論Ⅱ

    2021年10月 - 2022年3月   後期

  • エネルギー・環境・材料特論Ⅱ

    2021年10月 - 2022年3月   後期

  • 水資源環境工学

    2021年10月 - 2021年12月   秋学期

  • 水資源環境工学

    2021年10月 - 2021年12月   秋学期

  • 水資源環境工学

    2021年10月 - 2021年12月   秋学期

  • 国際会議企画・組織・運営実習

    2021年4月 - 2022年3月   通年

  • 国際会議企画・組織・運営実習

    2021年4月 - 2022年3月   通年

  • 大気海洋環境システム学特別研究

    2021年4月 - 2022年3月   通年

  • 環境流体科学セミナー

    2021年4月 - 2022年3月   通年

  • Doctoral Research (III)

    2021年4月 - 2022年3月   通年

  • Conference Design & Organizing 2

    2021年4月 - 2022年3月   通年

  • Exercise for Doctoral Thesis

    2021年4月 - 2022年3月   通年

  • Doctoral Research

    2021年4月 - 2022年3月   通年

  • 国際会議企画・組織・運営実習

    2021年4月 - 2022年3月   通年

  • 大気海洋環境システム学特別研究

    2021年4月 - 2022年3月   通年

  • 環境流体科学セミナー

    2021年4月 - 2022年3月   通年

  • Doctoral Research (III)

    2021年4月 - 2022年3月   通年

  • Conference Design & Organizing 2

    2021年4月 - 2022年3月   通年

  • Exercise for Doctoral Thesis

    2021年4月 - 2022年3月   通年

  • Doctoral Research

    2021年4月 - 2022年3月   通年

  • 大気海洋環境システム学特別研究

    2021年4月 - 2022年3月   通年

  • 環境流体科学セミナー

    2021年4月 - 2022年3月   通年

  • Doctoral Research (III)

    2021年4月 - 2022年3月   通年

  • Conference Design & Organizing 2

    2021年4月 - 2022年3月   通年

  • Exercise for Doctoral Thesis

    2021年4月 - 2022年3月   通年

  • Doctoral Research

    2021年4月 - 2022年3月   通年

  • エネルギー・環境・材料特論Ⅱ

    2021年4月 - 2021年9月   前期

  • エネルギー・環境・材料特論Ⅱ

    2021年4月 - 2021年9月   前期

  • Conference Design & Organizing

    2021年4月 - 2021年9月   前期

  • エネルギー・環境・材料特論Ⅱ

    2021年4月 - 2021年9月   前期

  • Conference Design & Organizing

    2021年4月 - 2021年9月   前期

  • Conference Design & Organizing

    2021年4月 - 2021年9月   前期

  • Advanced topics of Energy, Environment and Materials II

    2020年10月 - 2021年3月   後期

  • Discussion Leading & Organizing

    2020年10月 - 2021年3月   後期

  • Advanced topics of Energy, Environment and Materials II

    2020年10月 - 2021年3月   後期

  • Discussion Leading & Organizing

    2020年10月 - 2021年3月   後期

  • Advanced topics of Energy, Environment and Materials II

    2020年10月 - 2021年3月   後期

  • Discussion Leading & Organizing

    2020年10月 - 2021年3月   後期

  • 環境流体科学セミナー

    2020年4月 - 2021年3月   通年

  • Conference Design & Organizing 1

    2020年4月 - 2021年3月   通年

  • Conference Design & Organizing

    2020年4月 - 2021年3月   通年

  • 大気海洋環境システム学特別研究

    2020年4月 - 2021年3月   通年

  • 環境流体科学セミナー

    2020年4月 - 2021年3月   通年

  • Conference Design & Organizing 1

    2020年4月 - 2021年3月   通年

  • Conference Design & Organizing

    2020年4月 - 2021年3月   通年

  • 大気海洋環境システム学特別研究

    2020年4月 - 2021年3月   通年

  • 環境流体科学セミナー

    2020年4月 - 2021年3月   通年

  • Conference Design & Organizing 1

    2020年4月 - 2021年3月   通年

  • Conference Design & Organizing

    2020年4月 - 2021年3月   通年

  • 大気海洋環境システム学特別研究

    2020年4月 - 2021年3月   通年

  • Fundamentals of Green Engineering

    2020年4月 - 2020年9月   前期

  • Advanced topics of Energy, Environment and Materials II

    2020年4月 - 2020年9月   前期

  • Advanced topics of Energy, Environment and Materials II

    2020年4月 - 2020年9月   前期

  • Advanced topics of Energy, Environment and Materials II

    2020年4月 - 2020年9月   前期

  • Advanced topics of Energy, Environment and Materials II

    2019年10月 - 2020年3月   後期

  • Advanced topics of Energy, Environment and Materials II

    2019年10月 - 2020年3月   後期

  • Specail Research on Earth System Science and Technology

    2019年4月 - 2020年3月   通年

  • 環境流体科学セミナー

    2019年4月 - 2020年3月   通年

  • 大気海洋環境システム学特別研究

    2019年4月 - 2020年3月   通年

  • Conference Design & Organizing

    2019年4月 - 2020年3月   通年

  • Exercise for Doctoral Thesis

    2019年4月 - 2020年3月   通年

  • Doctoral Research

    2019年4月 - 2020年3月   通年

  • Specail Research on Earth System Science and Technology

    2019年4月 - 2020年3月   通年

  • 環境流体科学セミナー

    2019年4月 - 2020年3月   通年

  • 大気海洋環境システム学特別研究

    2019年4月 - 2020年3月   通年

  • Conference Design & Organizing

    2019年4月 - 2020年3月   通年

  • Exercise for Doctoral Thesis

    2019年4月 - 2020年3月   通年

  • Doctoral Research

    2019年4月 - 2020年3月   通年

  • Specail Research on Earth System Science and Technology

    2019年4月 - 2020年3月   通年

  • 環境流体科学セミナー

    2019年4月 - 2020年3月   通年

  • 大気海洋環境システム学特別研究

    2019年4月 - 2020年3月   通年

  • Exercise for Doctoral Thesis

    2019年4月 - 2020年3月   通年

  • Doctoral Research

    2019年4月 - 2020年3月   通年

  • Advanced topics of Energy, Environment and Materials II

    2019年4月 - 2019年9月   前期

  • Advanced topics of Energy, Environment and Materials II

    2019年4月 - 2019年9月   前期

  • Advanced topics of Energy, Environment and Materials II

    2019年4月 - 2019年9月   前期

  • Fundamentals on Interdisciplinary Engineering Sciences, Material, Energy, Environment

    2018年10月 - 2019年3月   後期

  • Seminar on Environmental Fluid Dynamics

    2018年10月 - 2019年3月   後期

  • Discussion Leading and Organizing

    2018年10月 - 2019年3月   後期

  • Doctoral Research

    2018年4月 - 2019年3月   通年

  • Exercise for Doctoral Thesis

    2018年4月 - 2019年3月   通年

  • Doctoral Research

    2018年4月 - 2019年3月   通年

  • Exercise for Doctoral Thesis

    2018年4月 - 2019年3月   通年

  • Doctoral Research

    2018年4月 - 2019年3月   通年

  • Advanced topics of Energy, Environment and Materials II

    2018年4月 - 2019年3月   通年

  • Exercise for Doctoral Thesis

    2018年4月 - 2019年3月   通年

  • Conference Design and Organizing

    2018年4月 - 2018年9月   前期

  • Environmental Fluid Dynamics

    2018年4月 - 2018年9月   前期

  • Environmental Fluid Dynamics

    2018年4月 - 2018年9月   前期

  • Environmental Fluid Dynamics

    2018年4月 - 2018年9月   前期

  • Communication Skills in English

    2017年10月 - 2018年3月   後期

  • Seminar on Environmental Fluid Dynamics

    2017年10月 - 2018年3月   後期

  • Research Internship III

    2017年10月 - 2018年3月   後期

  • 英語コミュニケーション

    2017年10月 - 2018年3月   後期

  • 英語コミュニケーション

    2017年10月 - 2018年3月   後期

  • Seminar on Environmental Fluid Dynamics

    2017年10月 - 2018年3月   後期

  • Research Internship III

    2017年10月 - 2018年3月   後期

  • Communication Skills in English

    2017年10月 - 2018年3月   後期

  • 英語コミュニケーション

    2017年10月 - 2018年3月   後期

  • Seminar on Environmental Fluid Dynamics

    2017年10月 - 2018年3月   後期

  • Research Internship III

    2017年10月 - 2018年3月   後期

  • Communication Skills in English

    2017年10月 - 2018年3月   後期

  • Doctoral Research

    2017年4月 - 2018年3月   通年

  • Exercise for Doctoral Thesis

    2017年4月 - 2018年3月   通年

  • Doctoral Research

    2017年4月 - 2018年3月   通年

  • Exercise for Doctoral Thesis

    2017年4月 - 2018年3月   通年

  • Doctoral Research

    2017年4月 - 2018年3月   通年

  • Exercise for Doctoral Thesis

    2017年4月 - 2018年3月   通年

  • Conference Design Organizing

    2017年4月 - 2017年9月   前期

  • Environmental Fluid Dynamics

    2017年4月 - 2017年9月   前期

  • Environmental Fluid Dynamics

    2017年4月 - 2017年9月   前期

  • Conference Design Organizing

    2017年4月 - 2017年9月   前期

  • Environmental Fluid Dynamics

    2017年4月 - 2017年9月   前期

  • Conference Design Organizing

    2017年4月 - 2017年9月   前期

  • Communication Skills

    2016年10月 - 2017年3月   後期

  • Afternoon Collocium

    2016年4月 - 2016年9月   前期

▼全件表示

FD参加状況

  • 2024年4月   役割:司会   名称:9th International Exchange and Innovation Conference on Engineering &amp;amp;amp; Sciences (IEICES 2023)

    主催組織:部局

  • 2024年1月   役割:講演   名称:Attracting global talent and making Kyushu University internationally competitive 

    主催組織:全学

  • 2022年10月   役割:司会   名称:8th International Exchange and Innovation Conference on Engineering &amp;amp; Sciences (IEICES 2022)

    主催組織:部局

  • 2022年9月   役割:講演   名称:Understanding the Faculty Evaluation Systems at Kyushu U

    主催組織:全学

  • 2021年10月   名称:7th International Exchange and Innovation Conference on Engineering &amp;amp; Sciences (IEICES 2021)

    主催組織:部局

  • 2020年10月   役割:司会   名称:6th International Exchange and Innovation Conference on Engineering &amp;amp; Sciences (IEICES 2020)

    主催組織:部局

  • 2019年10月   役割:司会   名称:5th International Exchange and Innovation Conference on Engineering &amp; Sciences (IEICES 2019)

    主催組織:部局

  • 2018年10月   役割:司会   名称:4th International Exchange and Innovation Conference on Engineering & Sciences (IEICES 2018)

    主催組織:部局

  • 2017年10月   役割:司会   名称:3 rd International Exchange and Innovation Conference on Engineering & Sciences (IEICES 2017)

    主催組織:部局

  • 2016年10月   役割:司会   名称:2nd International Exchange and Innovation Conference on Engineering & Sciences (IEICES 2016)

    主催組織:部局

  • 2015年10月   役割:司会   名称:1st International Exchange and Innovation Conference on Engineering & Sciences (IEICES 2015)

    主催組織:部局

▼全件表示

国際教育イベント等への参加状況等

  • 2024年2月

    Kyushu University

    Brown Bag Seminar

      詳細を見る

    開催国・都市名:Japan

    参加者数:50

  • 2024年2月

    Higher Institute of Biotechnology University of Sfax

    Study in Japan, Tunis

      詳細を見る

    開催国・都市名:Tunis

    参加者数:150

  • 2024年2月

    IGSES, Kyushu University

    Sakura Science Program

      詳細を見る

    開催国・都市名:Japan

    参加者数:8

  • 2023年8月

    Shanghai Jiao Tong University

    Campus Asia EEST 2023 Summer School Schedule

      詳細を見る

    開催国・都市名:China

    参加者数:50

  • 2023年7月

    J-Mena, Kyushu University

    Sakura Science Program

      詳細を見る

    開催国・都市名:Japan

    参加者数:10

  • 2022年8月

    Pusan National University

    Campus Asia EEST 2022 Summer School Schedule

      詳細を見る

    開催国・都市名:Korea

    参加者数:50

  • 2022年6月

    J-Mena

    Study in Japan, Egypt and Jordan

      詳細を見る

    開催国・都市名:Egypt and Jordan

    参加者数:50

  • 2021年8月

    Kyushu University

    Campus Asia EEST 2021 Summer School

      詳細を見る

    開催国・都市名:Japan

    参加者数:50

  • 2021年4月

    Kyushu University

    Education Fair 2021 hosted by International department of KU Headquarter

      詳細を見る

    開催国・都市名:Fukuoka

    参加者数:12

  • 2020年12月

    J-MENA Office

    Study in Japan Week 2020

      詳細を見る

    開催国・都市名:fUKUOKA

    参加者数:50

  • 2019年11月

    UAE

    Najah Higher Education Fair 2019

      詳細を見る

    開催国・都市名:Abu Dhabi, UAE

    参加者数:16,000

  • 2017年12月

    Kyushu University

    International Symposium on Earth Science and Technology

      詳細を見る

    開催国・都市名:Japan, Fukuoka

  • 2017年11月

    Kyushu University

    The 19th cross-straits symposium on energy and environmental science and technology (CSS-EEST19),

      詳細を見る

    開催国・都市名:Japan, Fukuoka

    参加者数:100

  • 2017年11月

    Kyushu University

    International Forum for Green Asia 2017

      詳細を見る

    開催国・都市名:Japan, Fukuoka

    参加者数:150

  • 2017年10月

    Kyushu University

    International Exchange and Innovation Conference on Engineering and Sciences

      詳細を見る

    開催国・都市名:Japan, Fukuoka

    参加者数:70

  • 2017年7月

    Kyushu University

    Educational Innovation Symposium

      詳細を見る

    開催国・都市名:Japan, Fukuoka

    参加者数:150

  • 2016年10月

    IGSES

    International Exchange and Innovation Conference on Engineering & Sciences (IEICES)

      詳細を見る

    開催国・都市名:Japan

    参加者数:50

  • 2016年2月

    Yonsei University

    The 2nd Joint Symposium of Kyushu University and Yonsei University

      詳細を見る

    開催国・都市名:Korea

    参加者数:50

  • 2015年10月

    IGSES

    International Exchange and Innovation Conference on Engineering & Sciences (IEICES)

      詳細を見る

    開催国・都市名:Japan

    参加者数:50

  • 2015年9月

    Japanese Society for Engineering Education

    63rd Annual Conference & Exposition

      詳細を見る

    開催国・都市名:Japan

    参加者数:200

  • 2014年8月

    Kyushu University

    5th International SOWAC Seminar of JSPS

      詳細を見る

    開催国・都市名:Japan

    参加者数:100

▼全件表示

その他教育活動及び特記事項

  • 2023年  学友会・同好会等の指導  WEEL, visit the Uminonakamichi Nata Sea Water Desalination plant

     詳細を見る

    Adviser

  • 2018年  学友会・同好会等の指導  KIISA - Kyushu University IGSES International Student Association

     詳細を見る

    Adviser for international students

  • 2016年  学友会・同好会等の指導  KIISA - Kyushu University IGSES International Student Association

     詳細を見る

    Adviser for international students

  • 2015年  学友会・同好会等の指導  KIISA - Kyushu University IGSES International Student Association

     詳細を見る

    Adviser for international students

  • 2014年  学友会・同好会等の指導  KIISA - Kyushu University IGSES International Student Association

     詳細を見る

    Adviser for international students

社会貢献・国際連携活動概要

  • 1. Investigating the potential of nanotechnology in bioenergy generation from wastewaters
    international collaboration with Professor Ian Thompson from the Department of Engineering Science, University of Oxford, UK

    2. Investigating the effect of iron nanoparticles on aerobic granulation and bacterial growth using aerobic sequencing batch reactor
    international collaboration with Professor Gülsüm YILMAZ from the Department of Environmental Engineering, Istanbul University-Cerrahpasa, Turkey

    3. Developing optimization models for sustainable and efficient water treatment from different contaminants
    international collaboration with Professor Ali Elkamel from the Department of Chemical Engineering, University of Waterloo, Canada

政策形成、学術振興等への寄与活動

  • 2020年12月 - 2021年12月   J-MENA Office, Kyushu University

    Brief Introduction of KU and details Introduction of IGSES for Study in Japan Week 2020

外国人研究者等の受け入れ状況

  • Institute of Graduate Studies & Research, University of Alexandria

    受入れ期間: 2024年6月 - 2025年5月   (期間):1ヶ月以上

    国籍:エジプト・アラブ共和国

    専業主体:外国政府・外国研究機関・国際機関

  • 受入れ期間: 2022年6月 - 2022年12月   (期間):1ヶ月以上

    国籍:エジプト・アラブ共和国

    専業主体:外国政府・外国研究機関・国際機関

  • National Research Institute of Astronomy and Geophysics (NRIAG)

    受入れ期間: 2022年6月 - 2022年12月   (期間):1ヶ月以上

    国籍:エジプト・アラブ共和国

    専業主体:外国政府・外国研究機関・国際機関

  • National Institute of Oceanography and Fisheries

    受入れ期間: 2022年5月 - 2022年11月   (期間):1ヶ月以上

    国籍:エジプト・アラブ共和国

    専業主体:外国政府・外国研究機関・国際機関

  • University Teknologi MARA

    受入れ期間: 2019年10月   (期間):2週間未満

    国籍:マレーシア

    専業主体:外国政府・外国研究機関・国際機関

  • University of Waterloo

    受入れ期間: 2016年2月   (期間):2週間未満

    国籍:カナダ

    専業主体:学内資金

▼全件表示

海外渡航歴

  • 2023年11月 - 2023年12月

    滞在国名1:グレートブリテン・北アイルランド連合王国(英国)   滞在機関名1:University of Oxford

  • 2019年1月 - 2019年10月

    滞在国名1:グレートブリテン・北アイルランド連合王国(英国)   滞在機関名1:University of Oxford

  • 2015年3月

    滞在国名1:カナダ   滞在機関名1:University of Waterloo

  • 2011年6月 - 2011年9月

    滞在国名1:カナダ   滞在機関名1:University of Waterloo

学内運営に関わる各種委員・役職等

  • 2024年4月 - 2026年3月   全学 International Advisory Group SIAG as a Board Member.

  • 2021年4月 - 2024年3月   全学 SHARE-Q International Advisory Group SIAG as a Board Member.

  • 2014年8月 - 2018年8月   学府 Kyushu University IGSES International Students Association (KIISA)

  • 2014年7月 - 2018年7月   学府 Green Asia

  • 2014年4月 - 2025年3月   学府 Intellectual Exchange and Innovation (IEI) Program

  • 2014年4月 - 2024年3月   学府 International Future Conceptual Center, IFCC

  • 2014年4月 - 2024年3月   学府 Annual International Exchange and Innovation Conference on Engineering Sciences,IEICES

  • 2014年4月 - 2022年3月   部門 Entrance Exam

  • 2010年10月 - 2014年3月   その他 member of Global 30 International Educational program

  • 2010年10月 - 2014年3月   その他 member of Undergraduate Course of Educational Enhancement Program

  • その他 International Adviser of the Interdisciplinary Graduate School of Engineering Sciences

  • その他 Board Member of SHARE-Q International Advisory Group (SIAG)

▼全件表示